Casio G-SHOCK G-6900B-1 User manual

Operation Guide 3180
1
MO0905-EA
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out
of your purchase, be sure to read this manual carefully.
Keep the watch exposed to bright light
The electricity generated by the solar cell of the
watch is stored by a rechargeable battery. Leaving
or using the watch where it is not exposed to light
causes the battery to run down. Make sure the
watch is exposed to light as much as possible.
•When you are not wearing the watch on your
wrist, position the face so it is pointed at a
source of bright light.
•You should try to keep the watch outside of
your sleeve as much as possible. Charging is
reduced significantly if the face is covered only
partially.
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Bright Light
Solar cell
All
functions
enabled
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Charge
Rechargeable battery
Bright Light
Electrical
energy
Solar cell
(Converts light to
electrical power.)
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Some or all
functions
disabled
Dis-
charge
Battery charges in the light. Battery discharges in the dark.
•The watch continues to operate, even when it is not exposed to light.
Leaving the watch in the dark can cause the battery to run down, which will
result in some watch functions to be disabled. If the battery goes dead, you
will have to re-configure watch settings after recharging. To ensure normal
watch operation, be sure to keep it exposed to light as much as possible.
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.
•The actual level at which some functions are disabled depends on the
watch model.
•Frequent display illumination can run down the battery quickly and require
charging. The following guidelines give an idea of the charging time
required to recover from a single illumination operation.
Approximately 5 minutes exposure to bright sunlight coming in through a
window
Approximately 8 hours exposure to indoor fluorescent lighting
•Be sure to read “Power Supply” for important information you need to
know when exposing the watch to bright light.
If the display of the watch is blank...
If the display of the watch is blank, it means that the watch’s Power Saving
function has turned off the display to conserve power.
•See “Power Saving Function” for more information.
About This Manual
•Depending on the model of your watch, display text appears either as dark
figures on a light background or light figures on a dark background. All
sample displays in this manual are shown using dark figures on a light
background.
•Button operations are indicated using the letters shown in the illustration.
•Each section of this manual provides you with the information you need to
perform operations in each mode. Further details and technical information
can be found in the “Reference” section.
General Guide
•Press Cto change from mode to mode.
•In any mode, press Lto illuminate the display.
Timekeeping Mode
Press C.
World Time Mode
Countdown Timer Mode Stopwatch Mode
Alarm Mode
▲
▲ ▲
▲ ▲
Timekeeping
Press the Bbutton to toggle the upper display
between the day of the week and date, and the
currently selected World Time city and time (Dual
Time).
Use the Timekeeping Mode to set and view the
current time and date.
Current Time
▲
Seconds
PM
indicator
Hour : Minutes
Seconds
Day of week
Month – Day
Dual Time
▲
Dual time
BB
City code
To set the time and date manually
1. In the Timekeeping Mode hold down Auntil
the city code starts to flash, which indicates
the setting screen.
2. Use Dand Bto select the city code you
want.
•Make sure you select your Home City code
before changing any other setting.
•For full information on city codes, see the
“UTC Differential/City Code List”.
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Read This Before You Set the Time and Date!
This watch is preset with a number of city codes, each of which represents
the time zone where that city is located. When setting the time, it is important
that you first select the correct city code for your Home City (the city where
you normally use the watch). If your location is not included in the preset city
codes, select the preset city code that is in the same time zone as your
location.
•Note that all of the times for the World Time Mode city codes are displayed
in accordance with the time and date settings you configure in the
Timekeeping Mode.
3. Press Cto move the flashing in the sequence shown below to select the
other setting.
Seconds
12/24-Hour
Format Hour Minutes
DST
Month Ye a r
City Code
DayPower Saving Illumination
Duration
Operation
Tone
4. When the timekeeping setting you want to change is flashing, use Dor
Bto change it as described below.
Specify your Home City
Cycle between Daylight Saving
Time (ON) and Standard Time
(OFF).
Use D(east) and B
(west).
Press D.
Screen: To do this: Do this:

Operation Guide 3180
2
5. Press Ato exit the setting screen.
To specify your Home City
1. In the Timekeeping Mode, hold down Auntil
the city code starts to flash, which indicates
the setting screen.
2. Press D(east) and B(west) to select the
city code you want to use as your Home City.
LIS,LON : Lisbon, London
MAD, PA R , ROM, BER, STO : Madrid, Paris,
Rome, Berlin, Stockholm
ATH : Athens
MOW : Moscow
HKG, BJS, TPE : Hong Kong, Beijing, Taipei
SEL, TYO : Seoul, Tokyo
HNL : Honolulu
ANC : Anchorage
YVR, LAX: Vancouver, Los Angeles
YEA, DEN: Edmonton, Denver
MEX, CHI : Mexico City, Chicago
NYC :NewYork
YHZ : Halifax
YYT : St.Johns
3. Press Ato exit the setting screen.
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City code
Hour : Minutes
PM indicator
Seconds
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour
from Standard Time. Remember that not all countries or even local areas use
Daylight Saving Time.
To change the Daylight Saving Time (summer time) setting
1. In the Timekeeping Mode, hold down Auntil
the city code starts to flash, which indicates
the setting screen.
2. Press Cand the DST setting screen appears.
3. Use Dto cycle through the DST settings in
the sequence shown below.
DST off (
OFF
) DST on (
ON
)
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DST indicator
4. When the setting you want is selected, press Ato exit the setting screen.
•The DST indicator appears to indicate that Daylight Saving Time is turned on.
12-hour and 24-hour timekeeping
•With the 12-hour format, the P(PM) indicator appears to the left of the hour
digits for times in the range of noon to 11:59 p.m. and no indicator appears
to the left of the hour digits for times in the range of midnight to 11:59 a.m.
•With the 24-hour format, times are displayed in the range of 0:00 to 23:59,
without the P(PM) indicator.
•The 12-hour/24-hour timekeeping format you select in the Timekeeping
Mode is applied in all other modes.
Others
•The day of the week is displayed automatically in accordance with the date
(year, month and day) settings.
•Button operation tone on and off
•Illumination duration
•Power Saving on and off
World Time
World Time shows the current time in 48 cities
(31 time zones) around the world.
•The times kept in the World Time Mode are
synchronized with the time being kept in the
Timekeeping Mode. If you feel that there is an
error in any World Time Mode time, check to
make sure you have the correct city selected
as your Home City. Also check to make sure
that the current time as shown in the
Timekeeping Mode is correct.
•Select a city code in the World Time Mode to display the current time in any
particular time zone around the globe. See the “UTC Differential/City Code
List”for information about the UTC differential settings that are supported.
•All of the operations in this section are performed in the World Time Mode,
which you enter by pressing C.
City code
Current time in
selected city
To view the time in another city
While in the World Time Mode, use the D(eastward) and B(westward)
buttons to scroll through the city codes (time zones). Holding down either
button scrolls at high speed.
•Pressing the Dand Bbuttons at the same time will jump to the UTC time
zone.
To toggle a city code time between Standard Time and Daylight
Saving Time
1. In the World Time Mode, use Dand Bto
display the city code (time zone) whose
Standard Time/Daylight Saving Time setting
you want to change.
2. Hold down Ato toggle between Daylight
Saving Time (DST indicator displayed) and
Standard Time (DST indicator not displayed).
•The DST indicator is shown on the World Time
Mode screen while Daylight Saving Time is
turned on.
DST indicator
•You can turn on DST individually for each city code, except UTC.
•Turning on DST for the city code that is currently selected as your Home
City will turn on DST for normal timekeeping.
Alarms
You can set up to five independent daily alarms
with hour and minutes. When an alarm is turned
on, the alarm tone sounds when the alarm time is
reached. One of the alarms is a snooze alarm,
while the other four are daily alarms.
You also can turn on an Hourly Time Signal that
causes the watch to beep twice every hour on the
hour.
•There are five alarm screens numbered AL1,
AL2, AL3 and AL4 for the daily alarm,
and a snooze alarm screen indicated by SNZ.
The Hourly Time Signal screen is indicated by
SIG.
•All of the operations in this section are
performed in the Alarm Mode, which you enter
by pressing C.
Alarm number
Alarm time
(Hour : Minutes)
Current Time
To set an alarm time
1. In the Alarm Mode, use Dto scroll through
the alarm screens until the one whose time
you want to set is displayed.
•To set a daily alarm, display alarm screen AL1, AL2, AL3 or
AL4. To set the snooze alarm, display the SNZ screen.
•The snooze alarm repeats every five minutes.
2. After you select an alarm, hold down Auntil the hour setting of the alarm
time starts to flash, which indicates the setting screen.
•This operation turns on the alarm automatically.
Toggle between 12-hour ( )
and 24-hour ( )
timekeeping
Reset the seconds to zero ( )
Change the hour and minutes
Change the year, month and day
Toggle between Button
Operation Tone on( ) and off
( )
Toggle the display illumination
duration between 1.5 seconds
() and three seconds ( )
Toggle between Power Saving
on ( ) and off ( )
Press D.
Press D.
Use D(+) and B(–).
Press D.
Press D.
Press D.
Screen: To do this: Do this:
3. Press Cto move the flashing in the sequence shown below.
Hour Minutes
4. Use D(+) and B(–) to change the hour and minutes.
•With the 12-hour format, set the time correctly as a.m. or p.m. (P
indicator).
5. Press Ato exit the setting screen.

Operation Guide 3180
3
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, regardless of the
mode the watch is in. In the case of the snooze alarm, the alarm operation is
performed a total of seven times, every five minutes, until you turn the alarm
off.
•Alarm and Hourly Time Signal operations are performed in accordance with
the Timekeeping Mode time.
•To stop the alarm tone after it starts to sound, press any button.
•Performing any one of the operations below during a 5-minute interval
between snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen
Displaying the
SNZ setting screen
To test the alarm
In the Alarm Mode, hold down Dto sound the alarm.
To turn an alarm on and off
1. In the Alarm Mode, use Dto select an alarm.
2. Press Bto toggle it on and off.
•Turning on a alarm (AL1, AL2, AL3,
AL4 or SNZ) displays the alarm on indicator
() on its Alarm Mode screen.
•In all modes, the alarm on indicator is shown
for any alarm that is currently turned on.
•The alarm on indicator flashes and graphic
rotates while the alarm is sounding.
•The snooze alarm indicator ( ) flashes and
graphic rotates while the snooze alarm is
sounding and during the 5-minute intervals
between alarms.
Alarm on
indicator
Snooze alarm
indicator
ON Graphic
Area
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use Dto select the
Hourly Time Signal (SIG).
2. Press Bto toggle it on and off.
•The Hourly Time Signal on indicator ( ) is
shown on the display in all modes while this
function is turned on.
Hourly time signal
on indicator
Stopwatch
The stopwatch lets you measure elapsed time,
split times, and two finishes.
•The display range of the stopwatch is 23 hours,
59 minutes, 59.99 seconds.
•The stopwatch continues to run, restarting from
zero after it reaches its limit, until you stop it.
•The stopwatch measurement operation
continues even if you exit the Stopwatch Mode.
•Exiting the Stopwatch Mode while a split time is
frozen on the display clears the split time and
returns to elapsed time measurement.
•All of the operations in this section are
performed in the Stopwatch Mode, which you
enter by pressing C.
1/100 second
Hours
Minutes
Seconds
D
Start
D
Start
D
Start
Stop Re-start ClearStop
DDB
D
➤ ➤ ➤ ➤
Split
(SPL displayed)
Split release ClearStop
BDB
B
➤ ➤ ➤ ➤
Split
First runner finishes.
Display time of first
runner.
Stop
Second runner
finishes.
ClearSplit release
Display time of
second runner.
DBB
B
➤ ➤ ➤ ➤
To measure times with the stopwatch
Elapsed Time
Split Time
Two Finishes
Countdown Timer
You can set the countdown timer within a range
of one minute to 24 hours. An alarm sounds
when the countdown reaches zero.
•All of the operations in this section are
performed in the Countdown Timer Mode,
which you enter by pressing C.
Hours
Minutes
Seconds
To configure the countdown timer
1. While the countdown start time is on the
display in the Countdown Timer Mode, hold
down Auntil the current countdown start time
starts to flash, which indicates the setting
screen.
•If the countdown start time is not displayed,
use the procedure under “To use the
countdown timer”to display it.
2. Press Cto move the flashing in the sequence shown below.
Hours Minutes
3. Use D(+) and B(–) to change the Hours and Minutes.
•To specify a countdown start time of 24 hours, set .
4. Press Ato exit the setting screen.
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To use the countdown timer
Press Dwhile in the Countdown Timer Mode to
start the countdown timer.
•The countdown timer operation continues even
if you exit the Countdown Timer Mode.
•Press Dwhile a countdown operation is in
progress to pause it. Press Dagain to resume
the countdown.
•To stop a countdown operation completely, first
pause it (by pressing D), and then press B.
This returns the countdown time to its starting
value.
Countdown End Beeper
The countdown end beeper lets you know when the countdown reaches zero.
The beeper stops after about 10 seconds or when you press any button.
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Seconds
Current
timer time
Timer start
time
Illumination
This watch has an EL (electro-luminescent) panel
that causes the entire display to glow for easy
reading in the dark. The watch’s auto light switch
turns on illumination automatically when you
angle the watch toward your face.
•The auto light switch must be turned on
(indicated by the auto light switch on indicator)
for it to operate.
•See “Illumination Precautions”for other
important information about using illumination.
To illuminate the display manually
In any mode, press Lto turn on illumination.
•The above operation turns on illumination
regardless of the current auto light switch
setting.
Auto light switch
on indicator
•You can use the procedure below to select either 1.5 seconds or 3 seconds
as the illumination duration. When you press L, the illumination will remain
on for about 1.5 seconds or 3 seconds, depending on the current
illumination duration setting.
To specify the illumination duration
1. In the Timekeeping Mode, hold down Auntil
the display contents start to flash. This is the
setting screen.
2. Press C10 times to display the current
illumination duration (LT1 or LT3).
3. Press Dto toggle the setting between LT1
(1.5 seconds) and LT3 (three seconds).
4. Press Ato exit the setting screen.
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Operation Guide 3180
4
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
toward you more than 40 degrees causes illumination to turn on.
•Wear the watch on the outside of your wrist.
•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.
Parallel to
ground More than
40°
Lower than 15 degrees
to illuminate
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 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.
To turn the auto light switch on and off
In the Timekeeping Mode, hold down Lfor about three seconds to toggle
auto light switch on (indicator is shown on the display) and off.
•The auto light switch on indicator ( ) is shown on the display in all modes
while the auto light switch is turned on.
Power Supply
This watch is equipped with a solar cell and a rechargeable battery that is
charged by the electrical power produced by the solar cell. The illustration
shown below shows how you should position the watch for charging.
Example: Orient the watch so its face is
pointing at a light source.
•The illustration shows how to position a
watch with a resin band.
•Note that charging efficiency drops when
any part of the solar cell is blocked by
clothing, etc.
•You should try to keep the watch outside
of your sleeve as much as possible.
Charging is reduced significantly if the
face is covered only partially.
Solar cell
Important!
•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
rechargeable battery power to run down. Be sure that the watch is exposed
to bright light whenever possible.
•This watch uses a rechargeable battery to store power produced by the
solar cell, so regular battery replacement is not required. However, after
very long use, the rechargeable battery may lose its ability to achieve a full
charge. If you experience problems getting the rechargeable battery to
charge fully, contact your dealer or CASIO distributor about having it
replaced.
•Never try to remove or replace the watch’s rechargeable battery yourself.
Use of the wrong type of battery can damage the watch.
•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.
•Turn on the watch’s Power Saving function and keep it in an area normally
exposed to bright light when storing it for long periods. This helps to keep
the rechargeable battery from going dead.
Battery Power Indicator and Recover Indicator
The battery power indicator on the display shows you the current status of the
rechargeable battery’s power.
Level
1
2
3
4
5
Battery Power Indicator
(Charge Soon Alert)
Function Status
All functions enabled.
All functions enabled.
Illumination, and beeper
disabled.
Except for the CHG (charge)
indicator, all functions and
display indicators disabled.
All functions disabled.
Battery power
indicator
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•The flashing LOW indicator at Level 3 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 after falling to Level 5,
reconfigure the current time, date and other settings.
•The watch’s Home City code setting will change automatically to TYO
(Tokyo) whenever the battery drops to Level 5 or when you have the
rechargeable battery replaced.
•Display indicators reappear as soon as the battery is charged from Level 5
to Level 2.
•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
higher than the actual battery level. The correct battery level should be
indicated after a few minutes.
•Performing illumination or beeper operations
during a short period may cause (recover)
to appear on the display. Illumination, alarm,
countdown timer alarm and hourly time signal
will be disabled until battery power recovers.
After some time, battery power will recover and
(recover) will disappear, indicating that the
above functions are enabled again.
•If (recover) appears frequently, it probably
means that remaining battery power is low.
Leave the watch in bright light to allow it to
charge.
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Recover indicator
Charging Precautions
Certain charging conditions can cause the watch to become very hot. Avoid
leaving the watch in the areas described below whenever charging its
rechargeable battery.
Also note that 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 lower temperature.
Warning!
Leaving the watch in bright light to charge its rechargeable battery 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
Charging Guide
After a full charge, timekeeping remains enabled for up to about 10 months.
•The following table shows the amount of time the watch needs to be
exposed to light each day in order to generate enough power for normal
daily operations.
•For details about the battery operating time and daily operating conditions,
see the “Power Supply”section of the Specifications.
•Stable operation is promoted by frequent exposure to light.
Exposure Level (Brightness)
Outdoor Sunlight (50,000 lux)
Sunlight Through a Window (10,000 lux)
Daylight Through a Window on a Cloudy Day (5,000 lux)
Indoor Fluorescent Lighting (500 lux)
Approximate
Exposure Time
5 minutes
24 minutes
48 minutes
8 hours

Operation Guide 3180
5
Recovery Times
The table below shows the amount exposure that is required to take the
battery from one level to the next.
•The above exposure time values are all for reference only. Actual required
exposure times depend on lighting conditions.
Approximate Exposure Time
Level 5 Level 4 Level 3 Level 2 Level 1
3 hours 18 hours 5 hours
9 hours 90 hours 24 hours
14 hours 182 hours 49 hours
155 hours - - - - - - - - - - - - - - - -
Exposure Level
(Brightness)
Outdoor Sunlight
(50,000 lux)
Sunlight Through a
Window (10,000 lux)
Daylight Through a
Window on a Cloudy
Day (5,000 lux)
Indoor Fluorescent
Lighting (500 lux)
▲
▲
▲
Reference
This section contains more detailed and technical information about watch
operation. It also contains important precautions and notes about the various
features and functions of this watch.
Graphic Area
The information shown in the graphic area depends on the current mode.
Mode
Timekeeping
World Time
Alarm
Stopwatch
CountdownTimer
Graphic Area
Timekeeping Mode seconds
Timekeeping Mode seconds
Rotates when the time is reached
Stopwatch Mode 1/10 seconds
CountdownTimer Mode seconds
Rotates when the time is reached
Graphic Area
Button Operation Tone
The button operation tone sounds any time you
press one of the watch’s buttons.You can turn the
button operation tone on and off as desired.
•Even if you turn off the button operation tone,
the alarms, the Hourly Time Signal, and the
countdown alarm all operate normally.
To turn the button operation tone on and off
1. In the Timekeeping Mode, hold down Auntil the display contents start to
flash. This is the setting screen.
2. Press Cnine times to display the current button operation tone setting
(or ).
3. Press Dto toggle the button operation tone on ( ) or off ( ).
4. Press Ato exit the setting screen.
•The indicator is displayed in all modes when the button operation tone
is turned off.
MUTE indicator
Power Saving Function
When turned on, the Power Saving function
enters a sleep state automatically whenever the
watch is left in an area for a certain period where
it is dark. The table below shows how watch
functions are affected by the Power Saving
function.
Elapsed Time
in Dark
60 to 70 minutes
6 or 7 days
Display
Blank, with Power Saving on
indicator ( ) flashing
Blank, with Power Saving on
indicator ( ) displayed (not
flashing)
Operation
All functions enabled, except
for the display
Beeper tone, illumination,
and display are disabled.
•Wearing the watch inside the sleeve of clothing can cause it to enter the
sleep state.
•The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If
the watch is already in the sleep state when 6:00 AM arrives, however, it
will remain in the sleep state.
Power saving on indicator
To recover from the sleep state
Perform any one of the following operations.
•Move the watch to a well-lit area.
•Press any button.
•Angle the watch toward your face for reading.
To turn Power Saving on and off
1. In the Timekeeping Mode, hold down Auntil
the city code starts to flash, which indicates
the setting screen.
2. Press Celeven times until the Power Saving
on/off screen appears.
3. Press Dto toggle Power Saving on ( ) and
off ( ).
4. Press Ato exit the setting screen.
•The Power Saving on indicator ( ) is displayed
in all modes while Power Saving is turned on.
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On/Off status
Auto Return
If you do not perform any operation for about two or three minutes while a
setting screen (with a flashing setting) is on the display, the watch will exit the
setting screen automatically.
Scrolling
The Band Dbuttons are used in various modes and setting screens to
scroll through data on the display. In most cases, holding down these buttons
during a scroll operation scrolls at high speed.
Initial Screens
When you enter the World Time Mode, or Alarm Mode, the data you were
viewing when you last exited the mode appears first.
Timekeeping
•Resetting the seconds to 00 while the current count is in the range of 30 to
59 causes the minutes to be increased by 1. In the range of 00 to 29, the
seconds are reset to 00 without changing the minutes.
•The year can be set in the range of 2000 to 2099.
•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 battery replaced or
the battery drops to Level 5.
•The current time for all city codes in the Timekeeping Mode and World Time
Mode is calculated in accordance with the Coordinated Universal Time
(UTC) for each city, based on your Home City time setting.
World Time
The seconds count of the World Time is synchronized with the seconds count
of the Timekeeping Mode.
Illumination Precautions
•The electro-luminescent panel that provides illumination loses power after
very long use.
•Illumination may be difficult to see when viewed under direct sunlight.
•The watch may emit an audible sound whenever the display is illuminated.
This is due to vibration of the EL panel used for illumination, and does not
indicate malfunction.
•Illumination turns off automatically whenever an alarm sounds.
•Frequent use of illumination runs down the battery.
Auto light switch precautions
•Avoid wearing the watch on the inside of your wrist. Doing so causes the
auto light switch to operate when it is not needed, which shortens battery
life. If you want to wear the watch on the inside of your wrist, turn off the
auto light switch feature.
•Illumination turns off after a preset amount of time (1.5 or 3 seconds), even
if you keep the watch pointed toward 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 toward
you 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.
•Under certain conditions, illumination may not turn on until about one
second after you turn the face of the watch toward you. This does not
necessarily indicate malfunction of the auto light switch.
•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.
Specifications
Accuracy at normal temperature: ±15 seconds a month
Timekeeping: Hour, minutes, seconds, p.m. (P), 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: Home City code (can be assigned one of 48 city codes); Standard
Time / Daylight Saving Time (summer time)
World Time: 48 cities (31 time zones)
Other: Daylight Saving Time/Standard Time
Alarms: 5 daily alarms (four daily alarms; one snooze alarm); Hourly Time
Signal
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 23:59' 59.99''
Measuring modes: Elapsed time, split time, two finishes

Operation Guide 3180
6
Countdown Timer:
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour
increments)
Illumination: EL (electro-luminescent panel); Auto Light Switch; Selectable
illumination duration
Other: Button operation tone on/off, Power saving on/off
Power Supply: Solar cell and one rechargeable battery
Approximate battery operating time: 10 months (from full charge to Level
4) under the following conditions:
•Watch not exposed to light
•Internal timekeeping
•Display on 18 hours per day, sleep state 6 hours per day
•1 illumination operation(1.5 second) per day
•10 seconds of alarm operation per day
Frequent use of illumination runs down the battery. Particular care is
required when using the auto light switch.
UTC Differential/City Code List
Pago Pago
Honolulu
Anchorage
Vancouver
Los Angeles
Edmonton
Denver
Mexico City
Chicago
New York
Santiago
Halifax
St. Johns
Rio De Janeiro
Fernando De
Noronha
Praia
–11
–10
–9
–8
–7
–6
–5
–4
–3.5
–3
–2
–1
PPG
HNL
ANC
YVR
LAX
YEA
DEN
MEX
CHI
NYC
SCL
YHZ
YYT
RIO
FEN
RAI
City City UTC
Code Differential
Lisbon
London
Madrid
Paris
Rome
Berlin
Stockholm
Athens
Cairo
Jerusalem
Moscow
Jeddah
Tehran
Dubai
Kabul
Karachi
Delhi
+0
+1
+2
+3
+3.5
+4
+4.5
+5
+5.5
UTC
LIS
LON
MAD
PA R
ROM
BER
STO
ATH
CAI
JRS
MOW
JED
THR
DXB
KBL
KHI
DEL
•Based on data as of December
2008.
•The rules governing global times
(GMT differential and UTC
offset) and summer time are
determined by each individual
country.
Kathmandu
Dhaka
Yangon
Bangkok
Singapore
Hong Kong
Beijing
Taipei
Seoul
Tokyo
Adelaide
Guam
Sydney
Noumea
Wellington
+5.75
+6
+6.5
+7
+8
+9
+9.5
+10
+11
+12
KTM
DAC
RGN
BKK
SIN
HKG
BJS
TPE
SEL
TYO
ADL
GUM
SYD
NOU
WLG
City City UTC
Code Differential