Casio 3443 User manual

MO1503-EA © 2015 CASIO COMPUTER CO., LTD.
Congratulations upon your selection of this CASIO watch.
Applications
The built-in sensors of this watch measure direction, barometric pressure, temperature and altitude.
Measured values are then shown on the display. Such features make this watch useful when hiking,
mountain climbing, or when engaging in other such outdoor activities.
Warning !
•The measurement functions built into this watch are not intended for taking measurements that
require professional or industrial precision. Values produced by this watch should be considered
as reasonable representations only.
• When engaging in mountain climbing or other activities in which losing your way can create a
dangerous or life-threatening situation, always use a second compass to confirm direction readings.
•Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss
suffered by you or any third party arising through the use of this product or its malfunction.
E E-1
ENGLISH
Important!
•Your watch’s Altimeter Mode calculates relative altitude based on changes in barometric pressure
measurement by its pressure sensor. For more information, see pages E-51 and E-65.
•Immediately before embarking or otherwise taking altitude readings, be sure to specify a reference
altitude. If you don’t the readings produced by the watch probably will not be very accurate. For more
information, see “To specify a reference altitude value” (page E-56).
•To ensure correct direction readings by this watch, be sure to perform bidirectional calibration before
using it. The watch may produce incorrect direction readings if you do not perform bidirectional
calibration. For more information, see “To perform bidirectional calibration” (page E-30).
E-2
About This Manual
•Depending on the model of your watch, digital display text appears
either as dark figures on a light background, or light figures on a dark
background. All examples in this manual are shown using dark figures
on a light background.
•Button operations are indicated using the letters shown in the
illustration.
•Note that the product illustrations in this manual are intended for
reference only, and so the actual product may appear somewhat
different than depicted by an illustration.
E-3
Things to check before using the watch
1. Check the battery power level.
Is “H” or “M” displayed for the battery power indicator (page E-11)?
Go to step 2.
Power is low. Charge the watch by placing it in a location
where it is exposed to light. For details, see “Charging the
Watch” (page E-9).
NO YES
YES
Does any one of the following conditions exist?
•Battery power indicator shows “L” and “LOW” is flashing on the
display.
•“CHG” is flashing on the display.
•The face is blank.
The watch is charged
sufficiently.
For details about
charging, see
“Charging the Watch”
(page E-9).
NEXT
Battery power
indicator
E-4
2. Check the Home City and the daylight saving time (DST) setting.
Use the procedure under “To configure Home City and summer time settings” (page E-20) to configure
your Home City and daylight saving time settings.
Important!
•World Time Mode and Sunrise/Sunset Mode data depend on correct Home City, time, and date settings
in the Timekeeping Mode. Make sure you configure these settings correctly.
3. Set the current time.
See “Configuring Current Time and Date Settings” (page E-22).
The watch is now ready for use.
E-5
Contents
About This Manual …………………………………………………………………………………………… E-2
Things to check before using the watch ………………………………………………………………… E-3
Charging the Watch…………………………………………………………………………………………… E-9
To recover from the sleep state …………………………………………………………………… E-14
Mode Reference Guide …………………………………………………………………………………… E-15
Timekeeping ………………………………………………………………………………………………… E-19
Configuring Home City Settings ………………………………………………………………………… E-20
To configure Home City and summer time settings ……………………………………………… E-20
Configuring Current Time and Date Settings ………………………………………………………… E-22
To change the current time and date settings …………………………………………………… E-22
Taking Direction Readings ……………………………………………………………………………… E-25
To take a direction reading ………………………………………………………………………… E-26
To perform bidirectional calibration………………………………………………………………… E-30
To perform magnetic declination correction ……………………………………………………… E-31
To store a direction angle reading in Bearing Memory ………………………………………… E-32
To set a map and find your current location ……………………………………………………… E-34
To find the bearing to an objective ………………………………………………………………… E-35
To determine the direction angle to an objective on a map and head in that direction
(Bearing Memory)………………………………………………………………………………… E-36
E-6
Specifying Temperature, Barometric Pressure, and Altitude Display Units …………………… E-40
To specify temperature, barometric pressure, and altitude display units ……………………… E-40
Taking Barometric Pressure and Temperature Readings ………………………………………… E-42
To take barometric pressure and temperature readings ………………………………………… E-42
To enable or disable the barometric pressure change alert …………………………………… E-47
To calibrate the pressure sensor and the temperature sensor ………………………………… E-49
Using the Altimeter Mode ………………………………………………………………………………… E-51
To select the altitude screen format ……………………………………………………………… E-52
To select the altitude auto reading interval ……………………………………………………… E-53
To take altitude readings …………………………………………………………………………… E-55
To specify a reference altitude value ……………………………………………………………… E-56
To specify the altitude differential start point……………………………………………………… E-57
To use the altitude differential value ……………………………………………………………… E-58
To save a reading manually………………………………………………………………………… E-59
To start trek log value updating …………………………………………………………………… E-62
To stop trek log value updating …………………………………………………………………… E-62
Precautions Concerning Simultaneous Altitude and Temperature Readings ………………… E-67
Viewing Altitude Records ………………………………………………………………………………… E-68
To view altitude records …………………………………………………………………………… E-68
To delete all manually saved data ………………………………………………………………… E-73
To delete data in a specific memory area ………………………………………………………… E-73
E-7
Looking up Sunrise and Sunset Times ………………………………………………………………… E-75
To enter the Sunrise/Sunset Mode ………………………………………………………………… E-75
To view the sunrise/sunset time for a particular date …………………………………………… E-76
To look up the sunrise and sunset times for a specific location………………………………… E-77
Using the Stopwatch ……………………………………………………………………………………… E-79
To enter the Stopwatch Mode ……………………………………………………………………… E-79
To perform an elapsed time operation …………………………………………………………… E-79
To pause at a split time……………………………………………………………………………… E-79
To measure two finishes …………………………………………………………………………… E-80
Using the Countdown Timer ……………………………………………………………………………… E-81
To enter the Countdown Timer Mode……………………………………………………………… E-81
To specify the countdown start time ……………………………………………………………… E-81
To perform a countdown timer operation ………………………………………………………… E-82
To stop the alarm …………………………………………………………………………………… E-82
Using the Alarm …………………………………………………………………………………………… E-83
To enter the Alarm Mode …………………………………………………………………………… E-83
To set an alarm time ………………………………………………………………………………… E-84
To turn an alarm and the Hourly Time Signal on and off………………………………………… E-85
To stop the alarm …………………………………………………………………………………… E-86
Operation Guide 3443

E-8
Checking the Current Time in a Different Time Zone………………………………………………… E-87
To enter the World Time Mode …………………………………………………………………… E-87
To view the time in another time zone …………………………………………………………… E-87
To specify standard time or daylight saving time (DST) for a city ……………………………… E-88
Illumination ………………………………………………………………………………………………… E-89
To turn on illumination manually …………………………………………………………………… E-89
To change the illumination duration ……………………………………………………………… E-89
To turn the auto light switch on and off …………………………………………………………… E-91
Other Settings ……………………………………………………………………………………………… E-93
To turn the button operation tone on and off……………………………………………………… E-93
To turn Power Saving on or off …………………………………………………………………… E-94
Troubleshooting …………………………………………………………………………………………… E-95
Specifications ……………………………………………………………………………………………… E-99
E-9
Charging the Watch
The face of the watch is a solar panel that generates power from light. The generated power charges a
built-in rechargeable battery, which powers watch operations. The watch charges whenever it is exposed
to light.
Charging Guide
Whenever you are not wearing the
watch, leave it in a location where it
is exposed to light.
•Best charging performance is
achieved by exposing the watch to
the strongest light available.
When wearing the watch, make sure
that its face is not blocked from light
by the sleeve of your clothing.
•The watch may enter a sleep state
(page E-13) if its face is blocked
by your sleeve even only partially.
Warning!
Leaving the watch in bright light for charging can cause it to become quite hot.
Take care when handling the watch to avoid burn injury. The watch can become particularly hot
when exposed to the following conditions for long periods.
•On the dashboard of a car parked in direct sunlight
•Too close to an incandescent lamp
•Under direct sunlight
E-10
Important!
•Allowing the watch to become very hot can cause its liquid crystal display to black out. The
appearance of the LCD should become normal again when the watch returns to a lower temperature.
•Turn on the watch’s Power Saving function (page E-13) and keep it in an area normally exposed to
bright light when storing it for long periods. This helps to ensure that power does not run down.
•Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is
blocked from exposure to light can cause power to run down. Expose the watch to bright light
whenever possible.
E-11
Power Levels
You can get an idea of the watch’s power level by observing the battery power indicator on the display.
Level Battery Power Indicator Function Status
1
(H) All functions enabled.
2
(M) All functions enabled.
3
(L)
Illumination, beeper, and sensor operation
disabled.
4
(CHG)
Except for the current time and the CHG
(charge) indicator, all functions and display
indicators disabled.
5 – – – All functions disabled.
•The flashing LOW indicator at Level 3 (L) tells you that battery power is very low, and that exposure to
bright light for charging is required as soon as possible.
•At Level 5, all functions are disabled and settings return to their initial factory defaults. Once the battery
reaches Level 2 (M) after falling to Level 5, reconfigure the current time, date, and other settings.
Battery power
indicator
Battery power
indicator
E-12
•Display indicators reappear as soon as the battery is charged from Level 5 to Level 2 (M).
•Leaving the watch exposed to direct sunlight or some other very strong light source can cause the
battery power indicator to show a reading temporarily that is higher than the actual battery level. The
correct battery level should be indicated after a few minutes.
•All data stored in memory is deleted, and the current time and all other settings return to their initial
factory defaults whenever battery power drops to Level 5 and when you have the battery replaced.
Power Recovery Mode
•Performing multiple sensor, illumination, or beeper operations during a short period may cause all of
the battery power indicators (H,M, and L) to start flashing on the display. This indicates that the watch
is in the power recovery mode. Illumination, alarm, countdown timer alarm, hourly time signal, and
sensor operations will be disabled until battery power recovers.
•Battery power will recover in about 15 minutes. At this time, the battery power indicators (H,M,L) will
stop flashing. This indicates that the functions listed above are enabled again.
•If all of the battery power indicators (H,M,L) are flashing and the CHG (charge) indicator also is
flashing, it means the battery level is very low. Expose the watch to bright light as soon as possible.
•Even if battery power is at Level 1 (H) or Level 2 (M), the Digital Compass Mode, Barometer/
Thermometer Mode, or Altimeter Mode sensor may be disabled if there is not enough voltage available
to power it sufficiently. This is indicated when all of the battery power indicators (H,M,L) are flashing.
•Frequent flashing of all of the battery power indicators (H,M,L) probably means that remaining battery
power is low. Leave the watch in bright light to allow it to charge.
E-13
Charging Times
Exposure Level (Brightness)
Daily
Operation
*1
Level Change *2
Level 5 Level 4 Level 3 Level 2 Level 1
Outdoor sunlight (50,000 lux) 5 min. 2 hours 18 hours 5 hours
Sunlight through a window (10,000 lux) 24 min. 7 hours 88 hours 24 hours
Daylight through a window on a
cloudy day (5,000 lux) 48 min. 14 hours 179 hours 48 hours
Indoor fluorescent lighting (500 lux) 8 hours 221 hours – – – – – –
*1 Approximate amount of exposure time required each day to generate enough power for normal daily
operation.
*2 Approximate amount of exposure time (in hours) required to take power from one level to the next.
•The above exposure times all are for reference only. Actual exposure times depend on lighting
conditions.
•For details about the operating time and daily operating conditions, see the “Power Supply” section of
the Specifications (page E-102).
Power Saving
When turned on, Power Saving enters a sleep state automatically whenever the watch is left for a certain
period in an area where it is dark. The table below shows how watch functions are affected by Power
Saving.
•For information about enabling and disabling power saving, see “To turn Power Saving on and off”
(page E-94).
•There actually are two sleep state levels: “display sleep” and “function sleep”.
E-14
Elapsed Time in Dark Display Operation
60 to 70 minutes (display sleep) Blank, with PS flashing Display is off, but all functions are enabled.
6 or 7 days (function sleep) Blank, with PS not flashing All functions are disabled, but timekeeping is
maintained.
•The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep
state when 6:00 AM arrives, however, it will remain in the sleep state.
•The watch will not enter a sleep state while it is in the Stopwatch Mode or Countdown Timer Mode.
To recover from the sleep state
Move the watch to a well-lit area, press any button, or angle the watch towards your face for reading (page
E-90).
E-15
Mode Reference Guide
Your watch has 10 “modes”. The mode you should select depends on what you want to do.
To do this: Enter this mode: See:
•View the current date in the Home City
•Configure Home City and daylight saving time (DST) settings
•Configure time and date settings
Timekeeping Mode E-19
Determine your current bearing or the direction from your current location
to a destination Digital Compass Mode E-25
•View the barometric pressure and temperature at your current location
•View a graph of barometric pressure readings
Barometer/Thermometer
Mode E-42
•View the altitude at your current location
•Determine the altitude differential between two locations (reference
point and current location)
•Record an altitude reading with the reading time and date
Altimeter Mode E-51
View the sunrise and sunset times for a specific date Sunrise/Sunset Mode E-75
Recall records created in the Altimeter Mode Data Recall Mode E-68
Use the stopwatch to measure elapsed time Stopwatch Mode E-79
Use the countdown timer Countdown Timer Mode E-81
Set an alarm time Alarm Mode E-83
View the current time in one of 48 cities (31 time zones) around the globe World Time Mode E-87
Operation Guide 3443

E-16
Selecting a Mode
•The illustration below shows which buttons you need to press to navigate between modes.
•To return to the Timekeeping Mode from any other mode, hold down Dfor about two seconds.
Countdown
Timer Mode Alarm Mode
Stopwatch Mode
World Time
Mode
Timekeeping Mode
Sunrise/Sunset
Mode
Data Recall
Mode
Countdown
Timer Mode Alarm Mode
Stopwatch Mode
World Time
Mode
Timekeeping Mode
Sunrise/Sunset
Mode
Data Recall
Mode
E-17
•You can use buttons A,B, and Cto enter a sensor mode directly from the Timekeeping Mode or
from another sensor mode. To enter a sensor mode from the Sunrise/Sunset, Data Recall, Alarm,
Stopwatch, Countdown Timer or World Time, first enter the Timekeeping Mode and then press the
applicable button.
Sensor Modes
Altimeter Mode
Barometer/
Thermometer Mode
Digital Compass Mode
Sensor Modes
Altimeter Mode
Barometer/
Thermometer Mode
Digital Compass Mode
E-18
General Functions (All Modes)
The functions and operations described in this section can be used in all of the modes.
Direct Timekeeping Mode Access
•To enter the Timekeeping Mode from any other mode, hold down Dfor about two seconds.
Auto Return Features
•The watch will automatically return to the Timekeeping Mode if you do not perform any button operation
for a particular amount of time in each mode.
Mode Name Approximate Elapsed Time
Sunrise/Sunset, Data Recall, Alarm, Digital Compass 3 minutes
Altimeter 1 hour minimum
12 hours maximum
Barometer/Thermometer 1 hour
Setting screen (digital setting flashing) 3 minutes
•If you leave a screen with flashing digits on the display for two or three minutes without performing any
operation, the watch exits the setting screen automatically.
Initial Screens
When you enter the Data Recall, Alarm, World Time, or Digital Compass Mode, the data you were viewing
when you last exited the mode appears first.
Scrolling
The Aand Cbuttons are used on the setting screen to scroll through data on the display. In most
cases, holding down these buttons during a scroll operation scrolls through the data at high speed.
E-19
Timekeeping
Use the Timekeeping Mode (TIME) to set and view the current time and date.
•Each press of Ein the Timekeeping Mode will change screen contents as shown below.
Day of the Week/Date Screen Month/Day Screen Barometric Pressure
Graph Screen
Barometric pressure graph
Day of week
Seconds
Hour :
Minutes
Day
PM
indicator
Month Day
E-20
Configuring Home City Settings
There are two Home City settings: actually selecting the Home City and selecting either standard time or
daylight saving time (DST).
To configure Home City and summer time settings
1. In the Timekeeping Mode, hold down Efor at least two seconds.
First, SET Hold will flash on the display, and CITY will be displayed in
the upper display. After that, the currently selected city code and city
name will scroll across the upper display. Keep Edepressed until the
scrolling starts.
•The watch will exit the setting mode automatically if you do not
perform any operation for about two or three minutes.
•For details about city codes, see the “City Code Table” at the back
of this manual.
2. Use A(East) and C(West) to scroll through the available city codes.
•Keep scrolling until the city code you want to select as your Home
City is displayed.
3. Press Dto display the DST setting screen.
4. Press Ato toggle the DST setting between Daylight Saving Time (ON)
and standard time (OFF).
•Note that you cannot switch between standard time and daylight
saving time (DST) while UTC is selected as your Home City.
PM
indicator
City code
Hour :
Minutes
DST indicator
Seconds
PM
indicator
City code
Hour :
Minutes
DST indicator
Seconds
E-21
5. After all of the settings are the way you want, press Etwice to exit the setting screen.
•Daylight Saving Time is turned on when the DST indicator is on the display.
Note
•After you specify a city code, the watch will use UTC* offsets in the World Time Mode to calculate
the current time for other time zones based on the current time in your Home City.
* Coordinated Universal Time, the world-wide scientific standard of timekeeping.
The reference point for UTC is Greenwich, England.
E-22
Configuring Current Time and Date Settings
You can use the procedure below to adjust the Timekeeping Mode time and date settings if they are off.
To change the current time and date settings
1. In the Timekeeping Mode, hold down Efor at least two seconds.
First, SET Hold will flash on the display, and CITY will be displayed in
the upper display. After that, the currently selected city code and city
name will scroll across the upper display. Keep Edepressed until the
scrolling starts.
PM
indicator
City code
Hour :
Minutes
PM
indicator
City code
Hour :
Minutes
E-23
2. Press Dto move the flashing in the sequence shown below to select the other settings.
Thermometer/Barometer/
Altitude display unit
Power
Saving
Illumination
Duration
Button Operation
Tone Day Month
City Code DST 12/24-Hour
Format Seconds Hour Minutes Year
•The following steps explain how to configure timekeeping settings only.
3. When the timekeeping setting you want to change is flashing, use Aand/or Cto change it as
described below.
Screen To do this: Do this:
Change the city code Use A(East) and C(West).
Toggle between Daylight Saving Time (ON) and
Standard Time (OFF). Press A.
Toggle between 12-hour (12H) and 24-hour (24H)
timekeeping. Press A.
Reset the seconds to 00
(If the current seconds count is between 30 and 59,
one is added to the minute count).
Press A.
Change the hour or minutes
Use A(+) and C(–).
Change the year, month, or day
4. After all of the settings are the way you want, press Etwice to exit the setting screen.
Operation Guide 3443

E-24
Note
•For information about selecting a Home City and configuring the DST setting, see “Configuring
Home City Settings” (page E-20).
•While the 12-hour format is selected for timekeeping, a P(PM) indicator will appear for times from
noon to 11:59 p.m. No indicator appears for times from midnight to 11:59 a.m. With 24-hour format,
time is displayed from 0:00 to 23:59, without any P(PM) indicator.
•The watch’s built-in full automatic calendar makes allowances for different month lengths and leap
years. Once you set the date, there should be no reason to change it except after you have the
watch’s rechargeable battery replaced or after power drops to Level 5 (page E-11).
•The day of the week changes automatically when the date changes.
•Refer to the pages shown below for more information on Timekeeping Mode settings.
- Button operation tone on/off: “To turn the button operation tone on and off” (page E-93)
- Illumination duration setting: “To change the illumination duration” (page E-89)
- Enabling and disabling power saving: “To turn Power Saving on and off” (page E-94)
- Changing the temperature, barometric pressure, and altitude display units (for a city code other
than TYO): “To specify temperature, barometric pressure, and altitude display units” (page E-40)
E-25
Taking Direction Readings
The Digital Compass Mode uses a built-in direction sensor to take direction readings and display the
results. North is indicated by three graphic segments ( ). The watch also displays literal indications of
direction that its 12 o’clock position is currently pointed.
•For information about what you can do to improve digital compass reading accuracy, see “Calibrating
the Bearing Sensor” (page E-28) and “Digital Compass Precautions” (page E-38).
E-26
To take a direction reading
1. Make sure the watch is in the Timekeeping Mode or any one of the
sensor modes.
•The sensor modes are: Digital Compass Mode, Barometer/
Thermometer Mode, and Altimeter Mode.
2. Place the watch on a flat surface. If you are wearing the watch, make
sure that your wrist is horizontal (in relation to the horizon).
3. Point the 12 o’clock position of the watch in the direction whose
reading you want to take.
4. Press Cto start.
•COMP will appear in the upper display to indicate that a digital
compass operation is in progress.
•About one second after you press C, pointers (three graphic
segments for north, one graphic segment each for south, east, and
west) will appear on the display to indicate north, south, east, and
west. Direction will also be indicated by literal direction indicators
and by a direction angle.
NW
0
WNW
W
WSW
SW
SSW
S
SSE
SE
ESE
E
ENE
NE
NNE
N
NNW
90
180
270
12 o’clock position
East
South
West Current
time
North pointer
Direction
indicator
Angle value (in degrees)
NW
0
WNW
W
WSW
SW
SSW
S
SSE
SE
ESE
E
ENE
NE
NNE
N
NNW
90
180
270
12 o’clock position
East
South
West Current
time
North pointer
Direction
indicator
Angle value (in degrees)
E-27
Note
•If the four pointers (north, south, east, west) and the direction indicating letters do not appear
on the display when you press C, it could mean that the watch is displaying bearing memory
information. If this happens, press Eto delete the current bearing memory contents. For more
information, see “Using Bearing Memory” (page E-32).
•To return to the Timekeeping Mode, press D.
Pressing Dwill return to the Timekeeping Mode even is a reading operation is in progress.
Important!
•If the digital display contents start to flash after you perform a reading operation, it means that
abnormal magnetism has been detected. Move away from any potential source of strong magnetism
and try taking a reading again. If the problem occurs when you try again, continue to keep away from
the source of strong magnetism, perform bidirectional calibration, and then try taking a reading again.
For more information, refer to “To perform bidirectional calibration” (page E-30) and “Location” (page
E-38).
Digital Compass Readings
•When you press Cto start digital compass reading operation, COMP will initially appear on the
display to indicate that a digital compass operation is in progress.
•After the first reading is obtained, the watch will continue to take digital compass readings automatically
each second for up to 60 seconds. After that, the reading operation will stop automatically.
•The direction indicator and angle value will show - - - to indicate that digital compass readings are
complete.
•The auto light switch is disabled during the 60 seconds that digital compass readings are being taken.
•The following table shows the meanings of each of the direction abbreviations that appear on the
display.
E-28
Direction Meaning Direction Meaning Direction Meaning Direction Meaning
NNorth NNE North-
northeast NE Northeast ENE East- northeast
EEast ESE East-
southeast SE Southeast SSE South- southeast
SSouth SSW South-
southwest SW Southwest WSW West- southwest
WWest WNW West-
northwest NW Northwest NNW North- northwest
•The margin of error for the angle value and the direction indicator is ±11 degrees while the watch is
horizontal (in relation to the horizon). If the indicated direction is northwest (NW) and 315 degrees, for
example, the actual direction can be anywhere from 304 to 326 degrees.
•Note that taking a direction reading while the watch is not horizontal (in relation to the horizon) can
result in large direction reading error.
• You can calibrate the bearing sensor if you suspect the direction reading is incorrect.
•Any ongoing direction reading operation is paused temporarily while the watch is performing an alert
operation (daily alarm, Hourly Time Signal, countdown timer alarm) or while illumination is turned on (by
pressing L). The direction reading operation resumes for its remaining duration after the operation
that caused it to pause is finished.
•See “Digital Compass Precautions” (page E-38) for important information about taking direction readings.
Calibrating the Bearing Sensor
You should calibrate the bearing sensor whenever you feel that the direction readings being produced by
the watch are off. You can use any one of two different bearing sensor calibration methods: bidirectional
calibration or magnetic declination correction.
E-29
•Bidirectional Calibration
Bidirectional calibration calibrates the bearing sensor in relation to magnetic north. Use bidirectional
calibration when you want to take readings within an area exposed to magnetic force. This type of
calibration should be used if the watch becomes magnetized for any reason.
Important!
•To ensure correct direction readings by this watch, be sure to perform bidirectional calibration before
using it. The watch may produce incorrect direction readings if you do not perform bidirectional
calibration.
•Magnetic Declination Correction
With magnetic declination correction, you input a magnetic declination angle (difference between
magnetic north and true north), which allows the watch to indicate true north. You can perform this
procedure when the magnetic declination angle is indicated on the map you are using. Note that you can
input the declination angle in whole degree units only, so you may need to round off the value specified
on the map. If your map indicates the declination angle as 7.4°, you should input 7°. In the case of 7.6°
input 8°, for 7.5° you can input 7° or 8°.
Precautions about bidirectional calibration
•You can use any two opposing directions for bidirectional calibration. You must, however, make sure
that they are 180 degrees opposite each other. Remember that if you perform the procedure
incorrectly, you will get wrong bearing sensor readings.
•Do not move the watch while calibration of either direction is in progress.
•You should perform bidirectional calibration in an environment that is the same as that where you plan
to be taking direction readings. If you plan to take direction readings in an open field, for example,
calibrate in an open field.
E-30
To perform bidirectional calibration
1. In the Digital Compass Mode, hold down Efor at least two seconds.
First, SET Hold will flash on the display. After that, CALIBRATION will
scroll across the upper display. Keep Edepressed until
CALIBRATION starts scrolling.
•At this time, the north pointer flashes at the 12 o’clock position
and the display will show -1- to indicate that the watch is ready to
calibrate the first direction.
2. Place the watch on a level surface facing any direction you want, and
press Cto calibrate the first direction.
•- - - is shown on the display while calibration is being performed.
When calibration is successful, Turn 18 0° will appear on the
display and three graphic segments ( ) will flash at 6 o’clock.
After about one second, CALIBRATION -2- will scroll across the
upper display.
•If ERR-1 appears on the display, press Cagain to restart the
direction reading operation.
3. Rotate the watch 180 degrees.
4. Press Cagain to calibrate the second direction.
•- - - is shown on the display while calibration is being performed.
When calibration is successful, the display will show OK and then
change to the Digital Compass Mode screen.
E-31
To perform magnetic declination correction
1. In the Digital Compass Mode, hold down Efor at least two seconds.
First, SET Hold will flash on the display. After that, CALIBRATION will
scroll across the upper display. Keep Edepressed until
CALIBRATION starts scrolling.
2. Press D.
•DEC 0° will appear on the display and then the current magnetic
declination angle setting will flash on the display.
3. Use A(East) and C(West) to change the settings.
• The following explains magnetic declination angle direction
settings.
OFF: No magnetic declination correction performed. The magnetic
declination angle with this setting is 0°.
E: When magnetic north is to the east (east declination)
W: When magnetic north is to the west (west declination)
•You can select a value within the range of W 90° to E 90° with
these settings.
•You can turn off (OFF) magnetic declination correction by pressing
Aand Cat the same time.
•The illustration, for example, shows the value you should input
and the direction setting you should select when the map shows a
magnetic declination of 1° West.
4. When the setting is the way you want, press Eto exit the setting
screen.
Magnetic declination angle
direction value (E, W, or OFF)
Magnetic declination
angle value
Magnetic declination angle
direction value (E, W, or OFF)
Magnetic declination
angle value
Operation Guide 3443

E-32
Using Bearing Memory
Bearing Memory lets you temporarily store and display a direction
reading so you can use it as a reference as you take subsequent digital
compass readings. The Bearing Memory screen displays the direction
angle for the stored reading, along with a pointer that indicates the stored
reading.
When you take digital compass readings while the Bearing Memory
screen is displayed, the direction angle of the current digital compass
reading (as read from the 12 o’clock position of the watch) and the stored
Bearing Memory direction reading will both be shown.
To store a direction angle reading in Bearing Memory
1. Press Cto start a digital compass reading operation (page E-26).
•This will take an initial reading and then take readings every
second for 60 seconds.
•If a bearing memory direction angle value is already displayed, it
means that there is a reading already stored in Bearing Memory. If
this happens, press Eto clear the Bearing Memory reading and
exit the bearing memory screen before performing the above step.
12 o’clock position
North pointer
Direction
angle of
current
reading
Bearing Memory
Screen
Bearing
memory
direction
angle value
Pointer to bearing
in bearing memory
12 o’clock position
North pointer
Direction
angle of
current
reading
Bearing Memory
Screen
Bearing
memory
direction
angle value
Pointer to bearing
in bearing memory
E-33
2. During the 60 seconds that digital compass readings are being taken, press
E
to store the current
reading in Bearing Memory.
•The Bearing Memory direction angle flashes for about one second as it is stored in Bearing
Memory. After that, the Bearing Memory screen (which shows the bearing memory direction angle
and pointer) will appear, and a new 60-second direction reading operation will start.
•You can press Cat any time while the Bearing Memory screen is displayed, to start a new
60-second direction reading operation. Doing so will display the direction angle for the direction
that the 12 o’clock position of the watch is pointed. The direction angle of the current reading will
disappear from the display after the 60-second direction reading operation is complete.
•During the first 60 seconds after you display the Bearing Memory screen or during a 60-second
direction reading operation you triggered by pressing Cwhile the Bearing Memory screen is on
the display, the direction stored in memory is indicated by a Bearing Memory pointer.
•Pressing Ewhile the Bearing Memory screen is displayed will clear the reading currently in
Bearing Memory and start a new 60-second direction reading operation.
Using the Digital Compass While Mountain Climbing or Hiking
This section provides three practical applications for using the watch’s built-in digital compass.
•Setting a map and finding your current location
Having an idea of your current location is important when mountain climbing or hiking. To do this, you
need to “set the map”, which means to align the map so the directions indicated on it are aligned with
the actual directions of your location. Basically what you are doing is aligning north on the map with
north as indicated by the watch.
•Finding the bearing to an objective
•Determining the direction angle to an objective on a map and heading in that direction
E-34
To set a map and find your current location
1. With the watch on your wrist, position it so the face is horizontal.
2. While in the Timekeeping Mode or in any of the sensor modes, press Cto take a compass reading.
•The reading will appear on the display after about one second.
3. Rotate the map without moving the watch so the northerly direction
indicated on the map matches north as indicated by the watch.
•If the watch is configured to indicate magnetic north, align the
map’s magnetic north with the watch indication. If the watch has
been configured with a declination to correct to true north, align
the map’s true north with the watch indication. For details, see
“Calibrating the Bearing Sensor” (page E-28).
•This will position the map in accordance with your current location.
4. Determine your location as you check the geographic contours around
you.
N
N
North indicated
on the map
North indicated by
north pointer
N
N
North indicated
on the map
North indicated by
north pointer
E-35
To find the bearing to an objective
1. With the watch on your wrist, position it so the face is horizontal.
2. Set the map so its northerly indication is aligned with north as indicated
by the watch, and determine your current location.
•See “To set a map and find your current location” on page E-34 for
information about how to perform the above step.
3. Next, set the map so the direction you want to travel on the map is
pointed straight in front of you.
4. While in the Timekeeping Mode or in any of the sensor modes, press
Cto take a compass reading.
•The reading will appear on the display after about one second.
5. Still holding the map in front of you, turn your body until north as
indicated by the watch and the northerly direction on the map are
aligned.
•This will position the map in accordance with your current location,
so the bearing to your objective is straight ahead of you.
N
N
Objective
Current
location
12 o’clock
position
Steps 3 and 4
N
N
Objective
Current
location
12 o’clock
position
Steps 3 and 4
E-36
To determine the direction angle to an objective on a map and head in that direction (Bearing Memory)
1. Set the map so its northerly indication is aligned with north as indicated
by the watch, and determine your current location.
•See “To set a map and find your current location” on page E-34 for
information about how to perform the above step.
2. As shown in the illustration to the left, change your position so you (and
the 12 o’clock position of the watch) are pointed in the direction of
objective, while keeping the northerly direction indicated on the map
aligned with north as indicated by the watch.
•If you find it difficult to perform the above step while keeping
everything aligned, first move into the correct position (12 o’clock
position of the watch pointed at the objective) without worrying
about the orientation of the map. Next, perform step 1 again to set
the map.
N
N
Objective
Current
location
12 o’clock
position
N
N
Objective
Current
location
12 o’clock
position
E-37
3. While in the Timekeeping Mode or in any of the sensor modes, press
Cto take a compass reading.
4. While direction angle readings are in progress, press Eto record the
currently displayed direction in Bearing Memory.
•The direction angle value and pointer stored in Bearing Memory
will remain on the display for about 60 seconds.
•To re-display the Bearing Memory direction angle value and
Bearing Memory pointer, press C.
•See “Using Bearing Memory” (page E-32) for more information.
5. Now you can advance while monitoring the Bearing Memory pointer to
ensure that it remains in the 12 o’clock position.
•Pressing Ewhile the Bearing Memory direction angle value and
Bearing Memory pointer are on the display will clear the Bearing
Memory data you saved in step 3 and save the current direction
reading in Bearing Memory.
Note
•When mountain climbing or hiking, conditions or geographic
contours may make it impossible for you to advance in a straight
line. If this happens, return to step 1 and save a new direction to
the objective.
12 o’clock position
North
pointer
Direction angle of
current reading
Bearing memory
direction angle value
Pointer to
bearing in
bearing memory
12 o’clock position
North
pointer
Direction angle of
current reading
Bearing memory
direction angle value
Pointer to
bearing in
bearing memory
E-38
Digital Compass Precautions
Magnetic North and True North
The northerly direction can be expressed either as magnetic north or true
north, which are different from each other. Also, it is important to keep in mind
that magnetic north moves over time.
•Magnetic north is the north that is indicated by the needle of a compass.
•True north, which is the location of the North Pole of the Earth’s axis, is the
north that is normally indicated on maps.
•The difference between magnetic north and true north is called the
“declination”. The closer you get to the North Pole, the greater the
declination angle.
Location
•Taking a direction reading when you are near a source of strong magnetism can cause large errors in
readings. Because of this, you should avoid taking direction readings while in the vicinity of the
following types of objects: permanent magnets (magnetic necklaces, etc.), concentrations of metal
(metal doors, lockers, etc.), high tension wires, aerial wires, household appliances (TVs, personal
computers, washing machines, freezers, etc.).
•Accurate direction readings are impossible while in a train, boat, air plane, etc.
•Accurate readings are also impossible indoors, especially inside ferroconcrete structures. This is
because the metal framework of such structures picks up magnetism from appliances, etc.
True north
Earth
Magnetic north
True north
Earth
Magnetic north
E-39
Storage
•The precision of the bearing sensor may deteriorate if the watch becomes magnetized. Because of
this, you should store the watch away from magnets or any other sources of strong magnetism,
including: permanent magnets (magnetic necklaces, etc.) and household appliances (TVs, personal
computers, washing machines, freezers, etc.).
•Whenever you suspect that the watch may have become magnetized, perform the procedure under “To
perform bidirectional calibration” (page E-30).
Operation Guide 3443

E-40
Specifying Temperature, Barometric Pressure, and Altitude Display Units
Use the procedure below to specify the temperature, barometric pressure, and altitude display units to be
used in the Barometer/Thermometer Mode and the Altimeter Mode.
Important!
•When TYO (Tokyo) is selected as the Home City, the altitude unit is set
automatically to meters (m), the barometric pressure unit to
hectopascals (hPa), and the temperature unit to Celsius (°C). These
settings cannot be changed.
To specify temperature, barometric pressure, and altitude display
units
1. In the Timekeeping Mode, hold down Efor at least two seconds.
First, SET Hold will flash on the display, and CITY will be displayed in
the upper display. After that, the currently selected city code and city
name will scroll across the upper display. Keep Edepressed until the
scrolling starts.
2. Press Das many times as necessary until UNIT appears on the
display.
•See the sequence in step 2 of the procedure under “To change the
current time and date settings” (page E-22) for information about
how to scroll through setting screens.
E-41
3. Perform the operations below to specify the display units you want.
To specify this unit: Press this key: To toggle between these settings:
Altitude Am(meters) and ft (feet)
Barometric Pressure BhPa (hectopascals) and inHg (inches of mercury)
Temperature C°C (Celsius) and °F (Fahrenheit)
4. After all of the settings are the way you want, press Etwice to exit the setting screen.
E-42
Taking Barometric Pressure and Temperature Readings
This watch uses a pressure sensor to measure air pressure (barometric pressure) and a temperature
sensor to measure temperature.
To take barometric pressure and temperature readings
While in the Timekeeping Mode or in any of the sensor modes, press B
to take barometric pressure and temperature readings.
•BARO will appear on the display, indicating that barometric
pressure and temperature reading are in progress. The results
will appear on the display after about one second.
•After you press B, the watch will take readings every five seconds
for the first three minutes, and then every two minutes after that.
Note
•Press Dto return to the Timekeeping Mode.
•The watch will return to the Timekeeping Mode automatically if you
do not perform any operation for about 1 hour after entering the
Barometer/Thermometer Mode.
Barometric
pressure graph
Barometric
pressure
Pressure
differential
pointer
Temperature
Barometric
pressure graph
Barometric
pressure
Pressure
differential
pointer
Temperature
E-43
Barometric Pressure
•Barometric pressure is displayed in units of 1 hPa (or 0.05 inHg).
• The displayed barometric pressure value changes to ---if a measured
barometric pressure falls outside the range of 260 hPa to 1,100 hPa (7.65
inHg to 32.45 inHg). The barometric pressure value will reappear as
soon as the measured barometric pressure is within the allowable range.
Temperature
•Temperature is displayed in units of 0.1°C (or 0.2°F).
•The displayed temperature value changes to - - - °C (or °F) if a
measured temperature falls outside the range of –10.0°C to 60.0°C
(14.0°F to 140.0°F). The temperature value will reappear as soon as
the measured temperature is within the allowable range.
Display Units
You can select either hectopascals (hPa) or inchesHg (inHg) as the display unit for the measured
barometric pressure, and Celsius (°C) or Fahrenheit (°F) as the display unit for the measured temperature
value. See “To specify temperature, barometric pressure, and altitude display units” (page E-40).
Barometric Pressure Graph
Barometric pressure indicates changes in the atmosphere. By monitoring
these changes you can predict the weather with reasonable accuracy.
This watch takes barometric pressure reading automatically every two
hours. Readings are used to produce barometric pressure graph and
barometric pressure differential pointer readings.
Temperature
Barometric pressure
change indicator
Barometric
pressure
Temperature
Barometric pressure
change indicator
Barometric
pressure
Barometric pressure graphBarometric pressure graph
E-44
Reading the Barometric Pressure Graph
The barometric pressure graph shows a chronological history of pressure readings.
•When display of the barometric change indicator is disabled, the graph shows the results of up to 21
barometric pressure readings (42 hours).
•When display of the barometric change indicator is enabled, the graph shows the results of up to 11
barometric pressure readings (22 hours).
•The horizontal axis of the graph represents time, with each dot standing for
two hours. The rightmost dot represents the most recent reading.
•The vertical axis of the graph represents barometric pressure, with each
dot standing for the relative difference between its reading and that of the
dots next to it. Each dot represents 1 hPa.
The following shows how to interpret the data that appears on the barometric pressure graph.
Rising barometric pressure indicates that upcoming weather will improve.
Falling barometric pressure indicates that upcoming weather will deteriorate.
Note
•If there are sudden changes in weather or temperature, the graph line of past reading
may run off the top or bottom of the display.
•The following conditions cause the barometric pressure reading to be skipped, with
the corresponding point on the barometric pressure graph being left blank.
– Barometric reading that is out of range (260 hPa to 1,100 hPa or 7.65 inHg to 32.45
inHg)
– Sensor malfunction
Barometric
pressure
Time
Barometric
pressure
Time
Not visible on
the display.
Not visible on
the display.
E-45
Barometric Pressure Differential Pointer
This pointer indicates the relative difference between the most recent
barometric pressure reading indicated on the barometric pressure graph
(page E-44), and the current barometric pressure value displayed in the
Barometer/Thermometer Mode (page E-43).
Reading Barometric Pressure Differential Pointer
Pressure differential is indicated in the range of
±10 hPa, in 1-hPa units.
•The nearby screen shot, for example, shows
what the pointer would indicate when the
calculated pressure differential is
approximately – 5 hPa (approximately – 0.15
inHg).
•Barometric pressure is calculated and
displayed using hPa as the standard. The
barometric pressure differential also can be
read in inHg units as shown in the illustration
(1 hPa =0.03 inHg).
Barometric
pressure
differential
pointer
Barometric
pressure
differential
pointer
−0.15
−5
−10
−0.3
Barometric pressure
differential pointer
inHg values
hPa values
Current pressure
greater than most
recent measured
pressure
Current pressure
less than most
recent measured
pressure
−0.15
−5
−10
−0.3
Barometric pressure
differential pointer
inHg values
hPa values
Current pressure
greater than most
recent measured
pressure
Current pressure
less than most
recent measured
pressure
E-46
Barometric Pressure Change Indications
Your watch analyzes past barometric pressure readings and uses a barometric pressure change indicator
to inform you about changes in pressure. If it determines there has been a significant change in pressure,
it will beep and all of the graphic segments ( ) around the periphery of the face will flash as a barometric
pressure change alert. This means you could start taking barometric pressure readings after reaching a
lodge or camp area, and then check the watch the next morning for changes in pressure, and plan you
day’s activities accordingly. Note that you can enable or disable display of the barometric pressure change
indicator as desired.
Reading the Barometric Pressure Change Indicator
Indicator Meaning
Sudden fall in pressure.
Sudden rise in pressure.
Sustained rise in pressure, changing to a fall.
Sustained fall in pressure, changing to a rise.
•The barometric pressure change indicator is not displayed if there has been no noteworthy change in
barometric pressure.
E-47
Important!
•To ensure proper results, take barometric readings under conditions where the altitude remains
constant.
Example
– In a lodge or campground
– On the ocean
•A change in altitude causes a change in barometric pressure. Because of this, correct readings are
impossible. Do not take readings while ascending or descending a mountain, etc.
Enabling or Disabling Display of the Barometric Pressure Change Indicator
You can enable or disable display of the barometric pressure change indicator as desired. When display
of the indicator is enabled, the watch will take a barometric pressure reading every two minutes,
regardless of the mode it is in.
•When BARO is shown on the display, it means that barometric pressure change indicator display is
enabled.
•When BARO is not on the display, it means that barometric pressure change indicator display is
disabled.
To enable or disable the barometric pressure change alert
In the Barometer/Thermometer Mode, hold down Bfor at least two seconds. Keep Bdepressed until
the current setting (INFO Hold ON or INFO Hold OFF) starts to flash on the display.
•If barometric pressure change indicator display is currently enabled, BARO will also appear in the
upper display. BARO will not appear if display is currently disabled.
•Note that barometric pressure change indicator display will turn off automatically 24 hours after you
turn it on or battery power goes low.
•Note that barometric pressure change indicator display cannot be enabled while the watch’s battery is
low.
Operation Guide 3443

E-48
Pressure Sensor and Temperature Sensor Calibration
The pressure sensor and temperature sensor built into the watch are calibrated at the factory and normally
require no further adjustment. If you notice serious errors in the pressure readings and temperature
readings produced by the watch, you can calibrate the sensor to correct the errors.
Important!
•Incorrectly calibrating the barometric pressure sensor can result in incorrect readings. Before
performing the calibration procedure, compare the readings produced by the watch with those of
another reliable and accurate barometer.
•Incorrectly calibrating the temperature sensor can result in incorrect readings.
Carefully read the following before doing anything.
–
Compare the readings produced by the watch with those of another reliable and accurate thermometer.
– If adjustment is required, remove the watch from your wrist and wait for 20 or 30 minutes to give the
temperature of the watch time to stabilize.
E-49
To calibrate the pressure sensor and the temperature sensor
1. Take a reading with another measurement device to determine the
exact current barometric pressure or temperature.
2. With the watch in the Timekeeping Mode or in any of the sensor
modes, press Bto enter the Barometer/Thermometer Mode.
3. Hold down Efor at least two seconds. SET Hold will flash on the
display and then TEMP will appear in the upper display. Keep E
depressed until TEMP appears.
•The current temperature calibration setting will flash in the lower
display at this time.
4. Press Dto move the flashing between the temperature value and
barometric pressure value, to select the one you want to calibrate.
5. Use
A(+) and C
( – ) to select the temperature and barometric
pressure value display units as shown below.
Temperature 0.1°C (0.2°F)
Barometric Pressure 1 hPa (0.05 inHg)
•To return the currently flashing value to its initial factory default
setting, press Aand Cat the same time. OFF will appear at
the flashing location for about one second, followed by the initial
default value.
6. Press Eto return to the Barometer/Thermometer Mode screen.
E-50
Barometer and Thermometer Precautions
•The pressure sensor built into this watch measures changes in air pressure, which you can then apply
to your own weather predictions. It is not intended for use as a precision instrument in official weather
prediction or reporting applications.
•Sudden temperature changes can affect pressure sensor readings. Because of this, there may be
some error in the readings produced by the watch.
•Temperature reading are affected by your body temperature, direct sunlight, and moisture. To achieve
a more accurate temperature reading, remove the watch from your wrist, place it in a well ventilated
location out of direct sunlight, and wipe all moisture from the case. It takes approximately 20 to 30
minutes for the case of the watch to reach the surrounding temperature.
E-51
Using the Altimeter Mode
The watch takes altitude readings and displays results based on air pressure measurements taken by a
built-in pressure sensor. It also saves various types of altitude records and data.
Important!
•See “To specify a reference altitude value” (page E-56) and “Altimeter Precautions” (page E-66) for
information about how to minimize differences between readings produced by the watch and values
provided by local altitude (elevation) indications.
Getting Ready
Before actually taking an altitude reading you need to select an altitude screen format and select an
altitude reading interval.
Selecting the Altitude Screen Format
You can select either of two screen formats for the Altimeter Mode.
Screen 1
Altitude
Tendency Graph
Altitude
Current time
Screen 2
Relative altitude
Altitude
Current time
E-52
•Altitude tendency graph contents are updated each time you take an altitude reading.
•Graph units are 10 meters on the vertical axis, and the measurement reading interval (one second, five
seconds, or two minutes) on the horizontal axis (page E-53).
•To take readings of the difference between the altitude at your current location and the altitude at a
reference point, select Screen 2. See “Using an Altitude Differential Value” (page E-57) for more
information.
To select the altitude screen format
1. In the Altimeter Mode, hold down Efor at least two seconds.
•SET Hold will flash on the display and then ALTI will appear in the upper display. Keep E
depressed until ALTI appears.
•The current altitude value will appear at this time.
2. Press Dtwice.
•DISP will appear, and then the current screen setting will appear in the upper display.
3. Use Ato toggle the setting between the two screens.
Screen 1 Screen 2
4. Press Eto exit the setting screen.
E-53
Selecting the Altitude Auto Reading Interval
You can select either of the following two altitude auto reading interval.
0’05: Readings at one-second intervals for the first three minutes, and then every five seconds for
approximately the next hour
2’00: Readings at one-second intervals for the first three minutes, and then every two minutes for
approximately the next 12 hours
Note
•If you do not perform any button operation while in the Altimeter Mode, the watch will return to the
Timekeeping Mode automatically after 12 hours (altitude auto reading interval: 2’00) or after one
hour (altitude auto reading interval: 0’05).
•If trek log operation is in progress with 0’05 selected as the altitude auto measurement method,
exiting the Altimeter Mode to another mode will automatically cause the auto reading interval to
change to 2’00.
To select the altitude auto reading interval
1. In the Altimeter Mode, hold down Efor at least two seconds. SET
Hold will flash on the display and then ALTI will appear in the upper
display. Keep Edepressed until ALTI appears.
•The current altitude reading value will appear at this time.
2. Press Dto display the current altitude auto reading interval setting.
•This will cause INTERVAL to scroll across the top display. The
current altitude auto reading interval setting (0’05 or 2’00) will be
flashing in the center display.
3. Press Ato toggle the altitude auto measurement interval setting
between 0’05 and 2’00.
4. Press Eto exit the setting screen.
E-54
Taking Altitude Readings
Use the procedure below to take basic altitude readings.
•See “Using Reference Altitude Values” (page E-56) for information about how to make altimeter
readings more accurate.
•See “How does the altimeter work?” (page E-65) for information about how the watch measures altitude.
E-55
To take altitude readings
1. Make sure the watch is in the Timekeeping Mode or any one of the
sensor modes.
•The sensor modes are: Digital Compass Mode, Barometer/
Thermometer Mode, and Altimeter Mode.
2. Press Ato start auto altimeter readings.
•The current altitude value is displayed in units of 1 meter (5 feet).
•For information about the measurement interval, see page E-53.
Note
•After you are finished, press Dto return to the Timekeeping Mode and
stop auto altimeter readings.
•The watch will return to the Timekeeping Mode automatically if you do
not perform any operation (page E-18).
•The measurement range for altitude is –700 to 10,000 meters (–2,300
to 32,800 feet).
•The displayed altitude value changes to ----if an altitude reading
falls outside the measurement range. An altitude value will reappear as
soon as the altitude reading is within the allowable range.
•Normally, displayed altitude values are based on the watch’s preset
conversion values. You also can specify a reference altitude value, if
you want. See “Using Reference Altitude Values” (page E-56).
•You can change the unit for displayed altitude values to either meters
(m) or feet (ft). See “To specify temperature, barometric pressure, and
altitude display units” (page E-40).
Screen 1 Selected
Altitude Tendency Graph
Altitude
Current time
Screen 1 Selected
Altitude Tendency Graph
Altitude
Current time
Screen 2 Selected
Relative altitude
Altitude
Current time
Screen 2 Selected
Relative altitude
Altitude
Current time
Operation Guide 3443

E-56
Using Reference Altitude Values
To minimize the chance of reading error, you should update the reference altitude value before setting off
on a trek or any other activity where you plan to take altitude readings. During a trek, keep checking the
readings produced by the watch against altitude information provided by markers and other information,
and update the reference altitude value as required.
•Reading error can be caused by changes in barometric pressure, atmospheric conditions, and
elevation.
•Before performing the procedure below, look up the altitude of your current location on a map, the
Internet, etc.
To specify a reference altitude value
1. In the Altimeter Mode, hold down Efor at least two seconds. SET
Hold will flash on the display and then ALTI will appear in the upper
display. Keep Edepressed until ALTI appears.
•The current altitude reading value will appear at this time.
2. Use A(+) or C(–) to change the current reference altitude value in
1-meter (5-foot) increments.
•Change the reference altitude value to an accurate altitude reading
that you get from a map or other source.
•You can set the reference altitude value within the range of –10,000
to 10,000 meters (–32,800 to 32,800 feet).
•Pressing Aand Cat the same time returns to OFF (no reference
altitude value), so the watch performs air pressure to altitude
conversions based on preset data only.
3. Press Eto exit the setting screen.
E-57
Advanced Altimeter Mode Operations
Use the information in this section to obtain more accurate altimeter readings, especially while mountain
climbing or trekking.
Using an Altitude Differential Value
The Altimeter Mode screen has an altitude differential value that shows
the change in altitude from a reference point you specify. The altitude
differential value is updated each time the watch takes an altitude reading.
•The range of the altitude differential value is –3,000 meters (–9,995
feet) to 3,000 meters (9,995 feet).
•- - - - is displayed in place of the altitude differential value whenever
the measured value is outside the allowable range.
•See “Using the Altitude Differential Value While Mountain Climbing or
Hiking” (page E-58) for some real-life examples of how to use this
feature.
To specify the altitude differential start point
1. In the Altimeter Mode, select Screen 2 as the Altimeter Mode display
(page E-52).
2. Press E.
•The watch will take an altitude reading and register the result as
the altitude differential value start point. The altitude differential
value will be reset to zero at this time.
Altitude differentialAltitude differential
Altitude differentialAltitude differential
E-58
Using the Altitude Differential Value While Mountain Climbing or Hiking
After you specify the altitude differential start point while mountain climbing or hiking, you can easily
measure the change in the altitude between that point and other points along the way.
To use the altitude differential value
1. In the Altimeter Mode, check to make sure that an altitude reading is
on the display.
•If an altitude reading is not displayed, press Ato take one. See “To
take altitude readings” (page E-55) for details.
2. Use the contour lines on your map to determine the difference in
altitude between your current location and your destination.
3. In the Altimeter Mode, press Eto specify your current location as the
altitude differential start point.
•The watch will take an altitude reading and register the result as
the altitude differential value start point. The altitude differential
value will be reset to zero at this time.
4. While comparing the altitude difference you determined on the map
and the watch’s altitude differential value, advance towards your
destination.
•If the map shows that the difference in altitude between your
location and your destination is +80 meters for example, you know
you will be nearing your destination when the displayed altitude
differential value shows +80 meters.
Current
location
Destination
altitude
Current
location
Destination
altitude
Altitude
Altitude
differential
Altitude
Altitude
differential
E-59
Types of Altitude Data
Your watch can record three types of altitude data in its memory: manually saved data, auto save values,
and trek log values.
•Use the Data Recall Mode to view data stored in memory. See “Viewing Altitude Records” (page E-68)
for details.
Manually Saved Records
Any time you perform the procedure below in the Altimeter Mode, the watch will create and store a record
with the currently displayed altitude reading, along with the date and time the reading was taken. There is
enough memory to store up to 30 manually saved records, which are numbered from REC 1 through
REC 30.
To save a reading manually
1. In the Altimeter Mode, check to make sure that an altitude reading is
on the display.
•If an altitude reading is not displayed, press Ato take one. See “To
take altitude readings” (page E-55) for details.
2. Hold down A. First, REC Hold will flash on the display. After that,
REC and the current time will appear in the lower display. Release A
as soon as REC and the current time appear.
•This will save the currently displayed altitude reading in a manually
saved record, along with the time and date of the reading.
•The watch will return to the Altimeter Mode screen automatically
after the save operation is complete.
•Holding down Afor too long will advance to trek log update
start/stop (page E-62).
E-60
•There is enough memory to store up to 30 manually saved records. If there are already 30
manually saved records in memory, the above operation will cause the oldest record to be deleted
automatically to make room for the new one.
Auto Save Values
Auto save values are one type of data stored in the memory of your watch.
Auto Save Values
High Altitude (MAX)
Low Altitude (MIN)
Total Ascent (ASC)
Total Descent (DSC)
•These values are checked and updated automatically by the watch as altitude auto measurements are
taken.
•Auto save is performed only while the watch is in the Altimeter Mode.
•Cumulative ascent and cumulative descent values are updated whenever there is a difference of at
least ±15 meters (±49 feet) from one reading to the next.
•Auto save values also include the date and time each value was recorded.
E-61
Trek Log Values
While trek log updating is enabled, altitude values (high altitude/low altitude, cumulative ascent/descent)
for a particular trek are automatically checked and updated at regular intervals, even if you exit the
Altimeter Mode. Values include the date and time each is updated. Up to 14 records of trek log values can
be maintained in memory, and each record is assigned a number from Mt.1 through Mt.14 in the sequence
they are stored.
Trek Log Values in Each Record
High Altitude (MAX)
Low Altitude (MIN)
Total Ascent (ASC)
Total Descent (DSC)
•For up to 12 hours after trek log value updating is enabled, the values are updated automatically even
if you exit the Altimeter Mode. A segment ( ) in the graphic around the periphery of the display flashes
to show the time elapsed since trek log value updating was enabled. Each graphic segment represents
12 minutes, and one revolution around the display represents 12 hours.
•You can select the altitude reading interval you want. For more information, see “To select the altitude
auto reading interval” (page E-53).
•Trek log value updating stops automatically whenever the battery charge goes low.
Note
•Even if you exit the Altimeter Mode while trekking, updating of the trek log high altitude, low altitude,
and cumulative ascent and descent values continues.
•Your watch has enough memory for 14 trek log records, which means you can maintain values for up to
14 treks.
E-62
To start trek log value updating
In the Altimeter Mode, hold down Afor at least five seconds. First, Trek
Hold will flash on the display. After that, Hold will disappear and a pointer
() indicating elapsed reading time will appear at 12 o’clock. Release A
when Hold disappears.
•This indicates that updating of trek log values (high altitude/low
altitude, cumulative ascent/descent) is being performed.
To stop trek log value updating
In the Altimeter Mode, hold down Afor at least five seconds. First, Trek
Hold End and the elapsed time pointer ( ) will flash. After that, Hold will
disappear. Release Awhen Hold disappears.
•This indicates that updating of trek log values (high altitude/low
altitude, cumulative ascent/descent) has been stopped.
Note
•To start a new trek log record while there are already 14 trek log
records in memory, you will need to delete existing records. For more
information, see “To delete data in a specific memory area” (page
E-73).
E-63
How High and Low Altitude Values are Updated
With each auto save or trek log reading, the watch compares the current reading against the MAX (high
altitude) and MIN (low altitude) values. It will replace the MAX value if the current reading is at least 15
meters (±49 feet) greater than MAX, or the MIN value if the current reading is at least 15 meters (±49 feet)
less than MIN.
How Cumulative Ascent and Cumulative Descent Values Are Updated
Session start point
20 m 0 m
120 m
320 m
620 m
Session end point
The total ascent and total descent values produced by an Altimeter Mode reading operation session
during the example climb illustrated above are calculated as follows.
Total Ascent:
q
(300 m) +
e
(620 m) = 920 m
Total Descent:
w
(320 m) +
r
(500 m) = 820 m
Operation Guide 3443

E-64
•Entering the Altimeter Mode starts a new altitude auto reading session, but it does not reset the current
ASC and DSC values or change them in any way. This means that the starting ASC and DSC values
for a new Altimeter Mode auto reading session are the values that currently are in memory. Each time
you complete an altitude auto reading session by exiting the Altimeter Mode, the total ascent value of
the current session (920 meters in the above example) is added to the session’s starting ASC value.
Also, the total descent value of the current auto reading session (–820 meters in the above example) is
added to the session’s starting DSC value.
•Logging of trek log data continues even if you exit the Altimeter Mode.
Note
•The high altitude, low altitude, total ascent, and total descent values are retained in memory when you
exit the Altimeter Mode. To clear values, perform the procedure under “To delete data in a specific
memory area” (page E-73).
E-65
How does the altimeter work?
Generally, air pressure decrease as altitude increases. This watch bases its altitude reading on
International Standard Atmosphere (ISA) values stipulated by the International Civil Aviation Organization
(ICAO). These values define relationships between altitude and air pressure.
•Note that the following conditions will prevent you from obtaining accurate readings:
When air pressure changes because of changes in the weather
Extreme temperature changes
When the watch itself is subjected to strong impact
There are two standard methods of expressing altitude: absolute altitude, which expresses an absolute
height above sea level, and relative altitude, which expresses the difference between the altitudes of two
different places. This watch expresses altitudes as relative altitude.
Height of building 130 m
(relative altitude)
Rooftop at an altitude of
230 m above sea level
(absolute altitude)
Sea Level
E-66
How the Altimeter Measures Altitude
The altimeter can measure altitude based on its own preset values (initial default method) or using a
reference altitude specified by you.
When you measure altitude based on preset values
Data produced by the watch’s barometric pressure sensor is converted to approximate altitude based on
ISA (International Standard Atmosphere) conversion values stored in watch memory.
When you measure altitude using a reference altitude specified by you
After you specify a reference altitude, the watch uses that value to convert
barometric pressure readings to altitude (page E-56).
•When mountain climbing, you can specify a reference altitude value in
accordance with a marker along the way or altitude information from a
map. After that, the altitude readings produced by the watch will be more
accurate than they would without a reference altitude value.
Altimeter Precautions
•This watch estimates altitude based on air pressure. This means that altitude readings for the same
location may vary if air pressure changes.
•Do not rely upon this watch for altitude reading or perform button operations while sky diving, hang
gliding, or paragliding, while riding a gyrocopter, glider, or any other aircraft, or while engaging in any
other activity where there is the chance of sudden altitude changes.
•Do not use this watch for measuring altitude in applications that demand professional or industrial level
precision.
•Remember that the air inside of a commercial aircraft is pressurized. Because of this, the readings
produced by this watch will not match the altitude readings announced or indicated by the flight crew.
400
A
B
400
A
B
E-67
Precautions Concerning Simultaneous Altitude and Temperature Readings
For the more accurate altitude readings, leaving the watch on your wrist is recommended in order to
maintain the watch at a constant temperature.
•When taking temperature readings, keep the watch at as stable a temperature as possible. Changes in
temperature can affect temperature readings. See product specifications (page E-99) for sensor
accuracy information.
E-68
Viewing Altitude Records
You can use the Data Recall Mode to view manually saved record data, auto save values, and trek log
values.
To view altitude records
1. Use Dto select the Data Recall Mode (REC) as shown on page E-16.
•About one second after REC appears on the display, the display
will change to show the first record of the memory area you were
viewing when you last exited the Data Recall Mode.
2. Use Bto select the memory area you want.
REC -01-
(Manually Saved
Record Area)
(Auto Save
Value Area)
Total
(Trek Log
Value Area)
Mt.1
•After you select the Trek Log Value Area screen, use the B
button to select the trek whose values you want to view. Treks are
numbered from 1 (Mt.1) through 14 (Mt.14).
•After you select the Manually Saved Record Area screen, the date
(month and day) and time of the record will alternate on the display
in the lower display at one-second intervals.
Reading time
(Hour : minute)
Reading date
(month, day)
1 second
Manually Saved
Record Area Screen
Reading time
(Hour : minute)
Reading date
(month, day)
1 second
Manually Saved
Record Area Screen E-69
3. Use Aand Cto scroll through the screens for an area and display the one you want.
REC
-01-
REC
-02-
REC
-30-
Manually saved records
MAX MIN ASC DSC
Auto saved values
AltitudeAltitude
AltitudeAltitude
E-70
MAX MIN ASC DSC
Trek Log Values (Mt.1 to Mt.14)
•Manually saved records (REC01 to REC30), auto save MAX and MIN values, and trek log values
all include the date (month and day) and time (hour and minute) that the data was recorded.
•Records of the ASC and DSC include altitude values along with the date (month, day) and year
that the data was recorded.
•For details about auto save values, see “Auto Save Values” (page E-60). For details about trek log
values, see “Trek Log Values” (page E-61).
•---- will be displayed if MAX/MIN data has been deleted or if there is no corresponding MAX/MIN
data due to error, etc. In such cases, total ascent (ASC) and total descent (DSC) values will show
zero.
AltitudeAltitude
E-71
•When the total ascent (ASC) or total descent (DSC) exceeds
99,999 meters (or 327,997 feet), the applicable value will restart
from zero. Note that the watch can display up to five digits only.
When using feet as the altitude display units, altitude values are
displayed only up to the rightmost five digits.
•When the total ascent (ASC) or total descent (DSC) value
becomes five digits long, the rightmost (ones) digit is shown in the
lower right of the display. The nearby illustration shows the display
when the value of ASC is 99995 meters.
10,000s digit
1s digit
10,000s digit
1s digit
Operation Guide 3443

E-72
Trek Log Values (Mt.1 to Mt.14)
High Altitude Value Low Altitude Value Cumulative Ascent
Value
Cumulative Descent
Value
*1 *2
*1: Month and day the displayed value was recorded.
*2: Month and day cumulation started.
•Holding down Aor Cscrolls at high speed.
•On the high altitude value (MAX) and low altitude value (MIN) screens, the lower display area alternates
between the date (month and day) and time at one-second intervals.
•On the cumulative ascent and cumulative descent screens, the lower display area alternates between
the month and day, and the year at one-second intervals.
E-73
To delete all manually saved data
Memory contents cannot be deleted while trek log values are being recorded.
1. Use Dto enter the Data Recall Mode.
2. Use Bto display the Manually Saved Record Area (page E-68).
3. Hold down Efor at least three seconds. First, Clear Hold ALL will flash in the display. After that, Hold
will disappear. Release Ewhen Hold disappears.
•This will cause ----to appear in the lower display.
•This indicates that all manually saved data is cleared.
To delete data in a specific memory area
Memory contents cannot be deleted while trek log values are being recorded.
1. Use Dto enter the Data Recall Mode.
2. Use Bto display the memory area (Manually Saved Record Area, Auto Save Value Area, or Trek Log
Value Area) that contains the data you want to delete.
3. What you should do next depends on which memory area you displayed in step 2, above.
•If you displayed the Manually Saved Record Area, use Aand Cto display the number of the
record (REC-01- through REC-30-) you want to delete.
•If you displayed the Auto Save Value Area, all of its values will be deleted, so you do not need to
select anything.
•If you displayed the Trek Log Value Area, use Bto display the trek (mountain) number of the
record (Mt.1 through Mt.14) you want to delete.
Important!
•A delete operation cannot be undone! Make sure you do not need data before you delete it.
E-74
4. Hold down Efor at least two seconds. First, Clear Hold will flash in the display. After that, Hold will
disappear. Release Ewhen Hold disappears.
•If you are deleting a Manually Saved Record Area record, holding down Etoo long (after Hold
disappears) will cause all manually saved records to be deleted.
•Deleting a record in either the Manually Saved Record Area or Trek Log Value Area will cause all
records following it to be shifted upwards and renumbered accordingly. If the record you delete
is the last one currently in the memory area where you deleted it, - - - - will be displayed in the
display in place of the record number.
•After you delete Auto Save Values, the MAX (high altitude) and MIN (low altitude) values will show
- - - -, while the ASC (cumulative ascent) and DSC (cumulative descent) values will show zero.
E-75
Looking up Sunrise and Sunset Times
You can use the Sunrise/Sunset Mode to look up the sunrise and sunset times for a particular date (year,
month, day) and location.
To enter the Sunrise/Sunset Mode
While in the Timekeeping Mode, press Dto enter the Sunrise/Sunset
Mode.
•This will display the sunrise and sunset times for the current date
based the currently specified city code, latitude, and longitude.
•Sunrise/sunset times will not be displayed when battery power is low.
•Before trying to use the Sunrise/Sunset Mode, you need to configure
settings for the city code, longitude, and latitude for the location whose
sunrise and sunset times you want to view.
•The factory default configuration of the location is: City Code: TYO
(Tokyo); Latitude: North 35.7 degrees; Longitude: East 139.7 degrees.
Current date
Sunrise time
Sunset time
Current date
Sunrise time
Sunset time
E-76
To view the sunrise/sunset time for a particular date
1. Enter the Sunrise/Sunset Mode.
•This will display the sunrise and sunset times for the current
date at the location specified by the city code, latitude, and
longitude.
2. While the sunrise/sunset time are on the display, use A(+) and C(–)
to scroll through the dates.
•Pressing one of the above buttons causes the month and day to
appear in the upper display area, and the year to appear in the
lower display area.
•When you release the button, the sunrise time of the selected day
will be shown in the middle display, while the sunset time will be
shown in the lower display.
•You can select any date between January 1, 2000 and December
31, 2099.
Note
• If you think that the sunrise and/or sunset times are not correct for
some reason, check the watch’s city code, longitude and latitude
settings.
•The sunrise and sunset times displayed by this watch are times at
sea level. Sunrise and sunset times are different at altitudes other
than sea level.
Sunrise time
Sunset time
Date
Sunrise time
Sunset time
Date
E-77
To look up the sunrise and sunset times for a specific location
Important!
•You do not need to perform this procedure to look up the sunrise and sunset times in your currently
selected Home City.
•If you select a different city code to look up the sunrise and sunset times there, return to the city
code of your Home City (your current location) when you are finished. Otherwise, the time shown
in the Timekeeping Mode will not be correct.
•For information about the Home City setting, see “Configuring Home City Settings” (page E-20).
1. In the Timekeeping Mode, hold down Efor at least two seconds. First, SET Hold will flash on the
display, and CITY will be displayed in the upper display. After that, the currently selected city code and
city name will scroll across the upper display. Keep Edepressed until the scrolling starts.
2. Use A(East) and C(West) to select the city code whose sunrise and sunset times you want to view.
•For details about city codes, see the “City Code Table” at the back of this manual.
•If this display shows the information you need, you can exit this procedure at this point by pressing
Etwice. If you want to specify a latitude and longitude for a more exact reading, advance to step 3,
below.
E-78
3. Press Eto display the longitude/latitude setting screen, with the
latitude setting flashing.
4. Use Dto move the flashing between the latitude and the longitude
setting.
5. Use A(+) and C(–) to change the flashing setting.
•You can configure the longitude and latitude setting within
following ranges.
Latitude Range: 65.0°S (South 65.0 degrees) to 0°N to 65.0°N
(North 65.0 degrees)
Longitude Range: 179.9°W (West 179.9 degrees) to 0°E to 180.0°E
(East 180.0 degrees)
•Latitude and longitude values are rounded off to the nearest
degree.
6. Press Eto return to the Timekeeping Mode.
7. In the Timekeeping Mode, press D.
•Display the location whose sunrise and sunset times you want to
view.
Latitude
Longitude
Press D.
Latitude
Longitude
Press D.
E-79
Using the Stopwatch
The stopwatch measures elapsed time, split times, and two finishes.
To enter the Stopwatch Mode
Use Dto select the Stopwatch Mode (STW) as shown on page E-16.
To perform an elapsed time operation
AAAAC
Start Stop (Restart) (Stop) Reset
To pause at a split time
ACCAC
Start Split
(SPLIT appears
in the upper part
of the display.)
Split release Stop Reset
Current time
Hours
Seconds
Minutes
1/10 second
Current time
Hours
Seconds
Minutes
1/10 second
Operation Guide 3443

E-80
To measure two finishes
ACA C C
Start Split
First runner finishes.
(SPLIT appears in
the upper part of the
display.)
Display time of first
runner
Stop
Second runner
finishes.
Split release
Display time of
second runner
Reset
Note
•The Stopwatch Mode can indicate elapsed time up to 999 hours, 59 minutes, 59.9 seconds.
•Once started, stopwatch timing continues until you press Ato stop it, even if you exit the Stopwatch
Mode to another mode and even if timing reaches the stopwatch limit defined above. A paused timing
operation will remain paused until you press Ato restart it or Cto reset.
•Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns
to elapsed time measurement.
•While SPLIT is shown in the upper display, it alternates with the hour digits of the split time at
one-second intervals.
E-81
Using the Countdown Timer
The countdown timer can be configured to start at a preset time, and sound an alarm when the end of the
countdown is reached.
To enter the Countdown Timer Mode
Use Dto select the Countdown Timer Mode (TMR) as shown on page E-16.
•About one second after TMR appears on the display, the display will
change to show the countdown time hours.
To specify the countdown start time
1. Enter the Countdown Timer Mode.
•If a countdown is in progress (indicated by the seconds counting
down), press Ato stop it and then press Cto reset to the current
countdown start time.
•If a countdown is paused, press Cto reset to the current
countdown start time.
2. Hold down Efor at least two seconds.
•SET Hold will flash on the display and then the current start time
setting will start to flash. Keep Edepressed until the start time
setting starts to flash.
3. Press Dto move the flashing between the hour and minute settings.
4. Use A(+) and C(–) to change the flashing item.
•To set the starting value of the countdown time to 24 hours, set 0H 00’00.
5. Press Eto exit the setting screen.
Countdown time
(Hour, minutes, seconds)
Current time
Countdown time
(Hour, minutes, seconds)
Current time
E-82
To perform a countdown timer operation
AAA A C
Start Stop (Restart) (Stop) Reset
•Before starting a countdown timer operation, check to make sure that a countdown operation is not in
progress (indicated by the seconds counting down). If it is, press Ato stop it and then Cto reset to
the countdown start time.
•An alarm sounds for ten seconds when the end of the countdown is reached. This alarm will sound in
all modes. The countdown time is reset to its starting value automatically when the alarm sounds.
To stop the alarm
Press any button.
E-83
Using the Alarm
You can set five independent daily alarms. When an alarm is turned on,
an alarm will sound for about 10 seconds each day when the time in the
Timekeeping Mode reaches the preset alarm time. This is true even if the
watch is not in the Timekeeping Mode. One of the daily alarms is a
snooze alarm. The other four are one-time alarms. The snooze alarm will
sound every five minutes up to seven times or until it is turned off.
You can also turn on an Hourly Time Signal, which will cause the watch
to beep twice every hour on the hour.
To enter the Alarm Mode
Use
D
to select the Alarm Mode (ALM) as shown on page E-16.
•About one second after ALM appears on the display, the display will
change to show an alarm name (AL-1 to AL-4, or SNZ) or the SIG
indicator. The alarm name indicates an alarm screen. SIG is shown
when the Hourly Time Signal screen is on the display.
•When you enter the Alarm Mode, the data you were viewing when you
last exited the mode appears first.
Alarm name
(AL- or SIG)
Alarm time
(Hour : Minutes)
Current time
Alarm name
(AL- or SIG)
Alarm time
(Hour : Minutes)
Current time
E-84
To set an alarm time
1. In the Alarm Mode, use Aand Cto scroll through the alarm screens
until the one whose time you want to set is displayed.
AL-1 AL-2 AL-3
SIG* SNZ AL-4
* There is no time setting for the hourly time signal.
2. Hold down Euntil SET Hold appears on the display and then the current settings start to flash.
•This is the setting screen.
3. Press Dto move the flashing between the hour and minute settings.
4. While a setting is flashing, use A(+) and C(–) to change it.
•When setting the alarm time using the 12-hour format, take care to set the time correctly as a.m. (no
indicator) or p.m. (Pindicator).
5. Press Eto exit the setting screen.
•Setting an alarm time causes that alarm to turn on automatically.
Alarm ON/OFF indicatorAlarm ON/OFF indicator
E-85
To turn an alarm and the Hourly Time Signal on and off
1. In the Alarm Mode, use Aand Cto select an alarm or the Hourly Time Signal.
2. When the alarm or the Hourly Time Signal you want is selected, press Bto turn it on and off.
•The alarm on indicator (when any alarm is on), snooze alarm
indicator (when the snooze alarm is on), and the Hourly Time
Signal on indicator (when the Hourly Time Signal is on) are shown
on the display in all modes.
Hourly time signal
on indicator
Snooze alarm
indicator
Alarm on indicator
Hourly time signal
on indicator
Snooze alarm
indicator
Alarm on indicator
E-86
To stop the alarm
Press any button.
Note
•The snooze alarm sounds up to seven times at intervals of about five minutes.
•After the snooze alarm first sounds, SNZ will flash on the display until the snooze alarm sounds all
seven times or until it is canceled.
•The snooze alarm will be canceled when any of the following occurs while the SNZ indicator is flashing
on the display.
- If you turn off the snooze alarm
- If you display the snooze alarm setting screen
- If you display the Timekeeping Mode setting screen
- If your Home City and World Time City are the same city, and you use the World Time Mode to
change the summer time setting of your Home City
E-87
Checking the Current Time in a Different Time Zone
You can use the World Time Mode to view the current time in one of 31 time zones (48 cities) around the
globe. The city that is currently selected in the World Time Mode is called the “World Time City”.
To enter the World Time Mode
Use Dto select the World Time Mode (WT) as shown on page E-16.
• One second after WT appears on the display, the city code of the
currently selected World Time City will scroll once in the upper display.
After that, the World Time City’s city code will be displayed in the upper
display.
To view the time in another time zone
In the World Time Mode, use A(East) and C(West) to scroll through
city codes.
Currently selected
Word Time City
Current timekeeping
Mode time
Current time in the currently
selected World Time City
Currently selected
Word Time City
Current timekeeping
Mode time
Current time in the currently
selected World Time City
Operation Guide 3443

E-88
To specify standard time or daylight saving time (DST) for a city
1. In the World Time Mode, use A(East) and C(West) to scroll through
the available city codes.
•Keep scrolling until the city code whose Standard Time/Daylight
Saving Time setting you want to change is displayed.
2. Hold down Efor at least two seconds.
•Keep Edepressed until the current setting (DST Hold ON or DST
Hold OFF) starts to flash on the display.
•DST Hold ON means that summer time is enabled, and that the
current time is advanced accordingly. DST Hold OFF means that
summer time is disabled, and that the current time shows standard
time.
•This toggles the city code you selected in step 1 between Daylight
Saving Time (DST indicator displayed) and standard time (DST
indicator not displayed).
•Using the World Time Mode to change the DST setting of the
city code that is selected as your Home City also will change the
Timekeeping Mode time DST setting.
•Note that you cannot switch between standard time/daylight
saving time (DST) while UTC is selected as the World Time City.
•Note that the standard time/daylight saving time (DST) setting
affects only the currently selected time zone. Other time zones are
not affected.
DST indicatorDST indicator
E-89
Illumination
The display of the watch is illuminated for easy reading in the dark.
The watch’s auto light switch turns on illumination automatically when
you angle the watch towards your face.
•The auto light switch must be turned on (page E-91) for it to operate.
To turn on illumination manually
Press Lin any mode to illuminate the display.
•You can use the procedure below to select either 1.5 seconds or three
seconds as the illumination duration. When you press L, the display
will remain illuminated for about 1.5 seconds or three seconds,
depending on the current illumination duration setting.
•The above operation turns on illumination regardless of the current
auto light switch setting.
•Illumination is disabled while configuring sensor measurement mode
settings, and during bearing sensor calibration.
To change the illumination duration
1. In the Timekeeping Mode, hold down Efor at least two seconds. First, SET Hold will flash on the
display, and CITY will be displayed in the upper display. After that, the currently selected city code and
city name will scroll across the upper display. Keep Edepressed until the scrolling starts.
2. Use Dto cycle through the setting screens until LIGHT appears in the upper display.
•The current illumination duration setting (1 or 3) will be flashing in the middle display.
•See the sequence in step 2 of the procedure under “To change the current time and date
settings” (page E-22) for information about how to scroll through setting screens.
E-90
3. Press Ato toggle the illumination duration between three seconds (3displayed) and 1.5 seconds (1
displayed).
4. After all of the settings are the way you want, press Etwice to exit the setting screen.
About the Auto Light Switch
Turning on the auto light switch causes illumination to turn on,
whenever you position your wrist as described below in any mode.
Moving the watch to a position that is parallel to the ground and
then tilting it towards you more than 40 degrees causes
illumination to turn on.
Warning!
•Always make sure you are in a safe place whenever you are reading the display of the watch
using the auto light switch. Be especially careful when running or engaged in any other activity
that can result in accident or injury. Also take care that sudden illumination by the auto light
switch does not startle or distract others around you.
•When you are wearing the watch, make sure that its auto light switch is turned off before riding
on a bicycle or operating a motorcycle or any other motor vehicle. Sudden and unintended
operation of the auto light switch can create a distraction, which can result in a traffic accident
and serious personal injury.
More than
40°
Wear the watch on the
outside of your wrist
More than
40°
Wear the watch on the
outside of your wrist
E-91
Note
•This watch features a “Full Auto Light”, so the auto light switch operates only when available light is
below a certain level. It does not illuminate the display under bright light.
•The auto light switch is always disabled, regardless of its on/off setting, when any one of the following
conditions exists.
While an alarm is sounding
While a bearing sensor calibration operation is being performed in the Digital Compass Mode
While a sunrise or sunset time is being calculated
While in a sensor mode, an auto light switch operation is performed after a sensor reading
To turn the auto light switch on and off
In the Timekeeping Mode, hold down Lfor at least three seconds to
toggle the auto light switch on (LT displayed) and off (LT not displayed).
•The auto light switch on indicator (
LT
) is on the display in all modes
while the auto light switch is turned on.
•The auto light switch turns off automatically whenever battery power
drops to Level 4 (page E-11).
Auto light switch on
indicator
Auto light switch on
indicator
E-92
Illumination Precautions
•The LED that provides illumination loses power after very long use.
•Illumination may be hard to see when viewed under direct sunlight.
•Illumination turns off automatically whenever an alarm sounds.
•Frequent use of illumination runs down the battery.
Auto light switch precautions
•Wearing the watch on the inside of your wrist, movement of your arm, or vibration of your arm can
cause frequent activation of the auto light switch and illumination of the display. To avoid running down
the battery, turn off the auto light switch whenever engaging in activities that might cause frequent
illumination of the display.
•Note that wearing the watch under your sleeve while the auto light switch is turned on can cause
frequent illumination of the display and can run down the battery.
•Illumination may not turn on if the face of the watch is more than 15 degrees above
or below parallel. Make sure that the back of your hand is parallel to the ground.
•Illumination turns off after the preset illumination duration (page E-89), even if you
keep the watch pointed towards your face.
•Static electricity or magnetic force can interfere with proper operation of the auto
light switch. If illumination does not turn on, try moving the watch back to the
starting position (parallel with the ground) and then tilt it back towards your face
again. If this does not work, drop your arm all the way down so it hangs at your
side, and then bring it back up again.
•You may notice a very faint clicking sound coming from the watch when it is shaken
back and forth. This sound is caused by mechanical operation of the auto light
switch, and does not indicate a problem with the watch.
E-93
Other Settings
The button operation tone sounds any time you press one of the watch’s buttons. You can turn the button
operation tone on or off as desired.
•Even if you turn off the button operation tone, the alarm, Hourly Time Signal, barometric pressure
change alert, and Countdown Timer Mode alarm all operate normally.
To turn the button operation tone on and off
1. In the Timekeeping Mode, hold down Efor at least two seconds.
First, SET Hold will flash on the display, and CITY will be displayed in
the upper display. After that, the currently selected city code and city
name will scroll across the upper display. Keep Edepressed until the
scrolling starts.
2. Use Dto cycle through settings on the display until the current button
operation tone (MUTE or key ) is displayed.
•See the sequence in step 2 of the procedure under “To change the
current time and date settings” (page E-22) for information about
how to scroll through setting screens.
3.
Press Ato toggle the button operation tone on (
key
) and off (MUTE).
4. After all of the settings are the way you want, press Etwice to exit the
setting screen.
Note
•The mute indicator is displayed in all modes when the button
operation tone is turned off.
Mute indicatorMute indicator
E-94
To turn Power Saving on or off
1. In the Timekeeping Mode, hold down Efor at least two seconds.
First, SET Hold will flash on the display, and CITY will be displayed in
the upper display. After that, the currently selected city code and city
name will scroll across the upper display. Keep Edepressed until the
scrolling starts.
2. Use Dto cycle through the setting screens until the current power
saving setting (On or OFF) is displayed.
•POWER SAVING will scroll across the upper display at this time.
•See the sequence in step 2 of the procedure under “To change the
current time and date settings” (page E-22) for information about
how to scroll through setting screens.
3. Press Ato toggle Power Saving on (On) and off (OFF).
4. After all of the settings are the way you want, press Etwice to exit the
setting screen.
Note
•The Power Saving on indicator (PS) is on the display in all modes
while Power Saving is turned on.
Power saving
on indicator
Power saving
on indicator
E-95
Troubleshooting
Time Setting
■ The current time setting is off by hours.
Your Home City setting may be wrong (page E-20). Check your Home City setting and correct it, if
necessary.
Sensor modes
■ I can’t change the temperature, barometric pressure, and altitude display units.
When TYO (Tokyo) is selected as the Home City, the altitude unit is set automatically to meters (m), the
barometric pressure unit to hectopascals (hPa), and the temperature unit to Celsius (°C). These settings
cannot be changed.
Operation Guide 3443

E-96
■ “ERR” appears on the display while I am using a sensor.
Subjecting the watch to strong impact can cause sensor malfunction or improper contact of internal
circuitry. When this happens, ERR (error) will appear on the display and sensor operations will be disabled.
Digital
Compass
Reading
Barometric
Pressure/Temperature
Reading
Altitude
Reading
•If ERR appears while a reading operation is being performed in a sensor mode, restart the operation. If
ERR appears on the display again, it can mean there is something wrong with the sensor.
•Even if battery power is at Level 1 (H) or Level 2 (M), the Digital Compass Mode, Barometer/
Thermometer Mode, or Altimeter Mode sensor may be disabled if there is not enough voltage available
to power it sufficiently. In this case, ERR will appear on the display. This does not indicate malfunction,
and sensor operation should resume once battery voltage returns to its normal level.
•If ERR keeps appearing during a reading operation, it could mean there is a problem with the
applicable sensor.
E-97
■ ERR appears on the display after I perform bidirectional calibration.
If ---appears and then changes to ERR (error) on the calibration screen, it means that there is something
wrong with the sensor.
•If ERR disappears after about one second, try performing the calibration again.
•If ERR keeps appearing, contact your original dealer or nearest authorized CASIO distributor to have
the watch checked.
Whenever you have a sensor malfunction, take the watch to your original dealer or nearest authorized
CASIO distributor as soon as possible.
■ What causes incorrect direction readings?
•Incorrect bidirectional calibration. Perform bidirectional calibration (page E-30).
•Nearby source of strong magnetism, such as a household appliance, a large steel bridge, a steel
beam, overhead wires, etc., or an attempt to take direction readings on a train, boat, etc. Move away
from large metal objects and try again. Note that digital compass operation cannot be performed inside
a train, boat, etc.
■ What causes different direction readings to produce different results at the same location?
Magnetism generated by nearby high-tension wires is interfering with detection of terrestrial magnetism.
Move away from the high-tension wires and try again.
■ Why am I having problems taking direction readings indoors?
A TV, personal computer, speakers, or some other object is interfering with terrestrial magnetism
readings. Move away from the object causing the interference or take the direction reading outdoors.
Indoor direction readings are particularly difficult inside ferro-concrete structures. Remember that you will
not be able to take direction readings inside of trains, airplanes, etc.
E-98
■ The barometric pressure differential pointer does not appear on the display when I enter the
Barometer/Thermometer Mode.
•This could indicate sensor error. Try pressing Bagain.
•The barometric pressure differential pointer is not displayed when the displayed current barometric
value is outside of the allowable measurement range (260 to 1,100 hPa).
■ Correct altitude readings are not possible.
Relative altitude is calculated based on changes in barometric pressure measurement by its pressure
sensor. To minimize the chance of reading error due to changes in barometric pressure, you should
update the reference altitude value before setting off on a trek or any other activity where you plan to take
altitude readings. For more information, see “To specify a reference altitude value” (page E-56).
World Time Mode
■ The time for my World Time City is off in the World Time Mode.
This could be due to incorrect switching between standard time and daylight saving time. See “To specify
standard time or daylight saving time (DST) for a city” (page E-88) for more information.
Charging
■ The watch does not resume operation after I expose it to light.
This can happen after the power level drops to Level 5 (page E-11). Continue exposing the watch to light
until the battery power indicator shows “H” or “M”.
E-99
Specifications
Accuracy at normal temperature: ±15 seconds a month
Timekeeping:
Hour, minutes, seconds, p.m. (P), year, month, day, day of the week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Three display formats (day of the week/day screen, month/day screen, barometric pressure
graph screen); Home City code (can be assigned one of 48 city codes); Standard Time / Daylight
Saving Time (summer time)
Year display on setting screen only.
Digital Compass:
60 seconds continuous reading; 16 directions; Angle value 0° to 359°; Four direction
pointers; Calibration (bidirectional); Magnetic declination correction; Bearing Memory
Barometer:
Measurement and display range:
260 to 1,100 hPa (or 7.65 to 32.45 inHg)
Display unit: 1 hPa (or 0.05 inHg)
Reading timing: Daily from midnight, at two hour intervals (12 times per day); Every five seconds in
the Barometer/Thermometer Mode
Other: Calibration; Manual reading (button operation); Barometric pressure graph; Barometric
pressure differential pointer; Barometric pressure change indicator
Thermometer:
Measurement and display range: –10.0 to 60.0°C (or 14.0 to 140.0°F)
Display unit: 0.1°C (or 0.2°F)
Reading timing: Every five seconds in the Barometer/Thermometer Mode
Other: Calibration; Manual reading (button operation)
E-100
Altimeter:
Measurement range: –700 to 10,000 m (or –2,300 to 32,800 ft.) without reference altitude
Display range: –10,000 to 10,000 m (or –32,800 to 32,800 ft.)
Negative values can be caused by readings produced based on a reference altitude or due to
atmospheric conditions.
Display unit: 1 m (or 5 ft.)
Current Altitude Data: Every second for the first 3 minutes, followed by every 5 seconds for
approximately 1 hour (0’05); every second for the first 3 minutes, followed by every 2 minutes for
approximately 12 hours (2’00)
Altitude Memory Data:
Manually saved records: 30 (altitude, date, time)
Auto saved values: One set of high altitude and its reading date and time, low altitude and its
reading date and time, total ascent and its save start date and time, total descent and its save
start date and time
Trek log data: High altitude, low altitude, cumulative ascent, cumulative descent for up to 14 treks
Other: Reference altitude setting; Altitude differential; Altitude auto measurement interval (0’05 or
2’00)
Bearing Sensor Precision:
Direction: Within ±10°
Values are guaranteed for a temperature range of –10°C to 60°C (14°F to 140°F).
North pointer: Within ±2 digital segments
Pressure Sensor Precision:
Measurement accuracy: Within ±3hPa (0.1 inHg) (Altimeter accuracy: Within ± 75m (246 ft.))
•Values are guaranteed for a temperature range of –10°C to 40°C (14°F to 104°F).
•Precision is lessened by strong impact to either the watch or the sensor, and by temperature
extremes.
E-101
Temperature Sensor Precision:
±2°C (±3.6°F) in range of –10°C to 60°C (14.0°F to 140.0°F)
Sunrise/sunset:
Sunrise/sunset time display; selectable date
Stopwatch:
Measuring unit: 1/10 second
Measuring capacity: 999:59' 59.9"
Measuring accuracy: ±0.0006%
Measuring modes: Elapsed time, split time, two finishes
Countdown Timer:
Measuring unit: 1 second
Countdown range: 24 hours
Setting unit: 1 minute
Alarms: 5 Daily alarms (four one-time alarms; one snooze alarm); Hourly time signal
World Time: 48 cities (31 time zones)
Other: Daylight Saving Time/Standard Time
Illumination: LED light; Selectable illumination duration (approximately 1.5 seconds or 3 seconds); Auto
Light Switch (Full Auto Light operates only in the dark)
Other: Battery power indicator; Power Saving; Low-temperature resistance (–10°C/14°F); Button
operation tone on/off
E-102
Power Supply: Solar panel and one rechargeable battery
Approximate battery operating time: 8 months (from full charge to Level 4) under the following
conditions:
•Light: 1.5 seconds/day
•Beeper: 10 seconds/day
•Direction readings: 20 times/month
•Climbs: Once (approximately 1 hour of altitude readings)/month
•Barometric pressure change indicator readings: Approximately 24 hours/month
•Barometric pressure graph: Readings every 2 hours
•Display: 18 hours/day
Frequent use of illumination runs down the battery. Particular care is required when using the auto
light switch (page E-92).
L-1
Operation Guide 3443

L-2
City Code Table
City
Code City UTC Offset/ GMT Differential
PPG Pago Pago –11
HNL Honolulu –10
ANC Anchorage –9
YVR Vancouver –8
LAX Los Angeles
YEA Edmonton –7
DEN Denver
MEX Mexico City –6
CHI Chicago
NYC New York –5
SCL Santiago –4
YHZ Halifax
YYT St. Johns –3.5
RIO Rio De Janeiro –3
FEN Fernando de
Noronha –2
RAI Praia –1
City
Code City UTC Offset/ GMT Differential
UTC
0LIS Lisbon
LON London
MAD Madrid
+1
PAR Paris
ROM Rome
BER Berlin
STO Stockholm
ATH Athens
+2CAI Cairo
JRS Jerusalem
MOW Moscow +3
JED Jeddah
THR Tehran +3.5
DXB Dubai +4
KBL Kabul +4.5
KHI Karachi +5
L-3
City
Code City UTC Offset/ GMT Differential
DEL Delhi +5.5
KTM Kathmandu +5.75
DAC Dhaka +6
RGN Yangon +6.5
BKK Bangkok +7
SIN Singapore
+8
HKG Hong Kong
BJS Beijing
TPE Taipei
SEL Seoul +9
TYO Tokyo
ADL Adelaide +9.5
GUM Guam +10
SYD Sydney
NOU Noumea +11
WLG Wellington +12
•This table shows the city codes of this watch.
(As of December 2014)
•The rules governing global times (GMT
differential and UTC offset) and summer time
are determined by each individual country.
Operation Guide 3443