Casio 2941 User manual

Operation Guide 2941
1
MO0501-EA
Warning!
•The longitude, lunitidal interval, Moon phase indicator, and tide graph data that
appear on the display of this watch are not intended for navigation purposes.
Always use proper instruments and resources to obtain data for navigation
purposes.
•This watch is not an instrument for calculating low tide and high tide times. The
tide graph of this watch is intended to provide a reasonable approximation of tidal
movements only.
•CASIO COMPUTER CO., LTD. assumes no responsibility for any loss, or any
claims by third parties that may arise through the use of this watch.
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 and keep it on hand for later reference
when necessary.
About This Manual
•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.
(Light)
General Guide
•Press Dto change from mode to mode.
•In any mode, press Lto illuminate the display. Tide/Moon Data Mode World Time Mode
Stopwatch Mode
Timekeeping Mode
▲
▲
▲
Countdown Timer
Mode
▲
▲
Alarm Mode
Press D.
▲
Timekeeping
Use the Timekeeping Mode to set and view the current time and date. You can also
use the Timekeeping Mode to select either audible beeper or vibration alert for alarms.
•The tide graph shows tidal movements for the current date in accordance with the
current time as kept in the Timekeeping Mode.
•The Moon phase indicator shows the current Moon phase in accordance with the
current date as kept in the Timekeeping Mode.
•In the Timekeeping Mode, you can press Cto change the display format as shown
below.
Day of week
Month –Day
Hour : Minutes Seconds
PM indicator
Tide graph
Moon phase
indicator
▲
▲
Press C.
Day of the Week Tide Graph
Important!
•Moon phase, tide graph data, and Tide/Moon Data Mode data will not be displayed
properly unless the Timekeeping Mode current date and time settings and Home
Site data are configured correctly. See “Home Site Data”for more information.
To set the time and date
1. In the Timekeeping Mode, hold down Auntil the
seconds start to flash, which indicates the setting
screen.
2. Press Dto move the flashing in the sequence shown
below to select other settings.
HourDSTSeconds
Day Month Year
Minutes
3. When the setting you want to change is flashing, use Eand Bto change it as
described below.
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To change this setting
Seconds
DST
Hour, Minutes, Year,
Month, Day
Perform this button operation
Press Eto reset to 00.
Press Eto toggle between Standard Time (OFF)
and Daylight Saving Time (ON).
Use E(+) and B(–) to change the setting.
4. Press Atwice to exit the setting screen.
•The first press of Adisplays the GMT differential setting screen. Pressing Aagain
exits the setting screen.
•See “Daylight Saving Time (DST)”for details about the DST setting.
•For information about specifying how long the display of the watch remains
illuminated, see “To specify the illumination duration”.
•The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
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 toggle the Timekeeping Mode digital time between DST and Standard Time
1. In the Timekeeping Mode, hold down Auntil the
seconds start to flash, which indicates the setting
screen.
2. Press Donce and the DST setting screen appears.
3. Press Eto toggle between Daylight Saving Time (ON
displayed) and Standard Time (OFF displayed).
4. Press Atwice to exit the setting screen.
•The DST indicator appears on the display to indicate
that Daylight Saving Time is turned on.
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DST indicator
To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press Bto toggle between 12-hour timekeeping and 24-
hour timekeeping.
•With the 12-hour format, the P(PM) indicator appears on the display for times in the
range of noon to 11:59 p.m. and no indicator appears 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
any indicator.
•The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.
Home Site Data
Tide graph data will not be displayed properly unless Home Site data (GMT
differential, longitude, and lunitidal interval) is configured correctly.
•The GMT differential is the time difference of the time zone where the site is located
from Greenwich Mean Time.
•The lunitidal interval is the time elapsing between the Moon’s transit over a meridian
and the next high tide at that meridian. See “Lunitidal Interval”for more information.
•This watch displays lunitidal intervals in terms of hours and minutes.
•The “Site/Lunitidal Interval Data List”provides GMT differential, longitude, and
lunitidal interval information around the world.
•The following is the initial factory default Home Site data (Tokyo, Japan) when you
first purchase the watch and whenever you have the battery replaced. Change these
settings to match the area where you normally use the watch.
GMT differential (+9.0); Longitude (East 140 degrees); Lunitidal interval (5 hours,
20 minutes)
GMT differential
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To configure Home Site data
1. In the Timekeeping Mode, hold down Auntil the
seconds start to flash, which indicates the setting
screen.
2. Press Aagain to display the GMT differential setting
screen.
3. Press Dto move the flashing in the sequence shown
below to select other settings.
Lunitidal Interval
Hours
Lunitidal Interval
Minutes
Longitude
GMT
Differential
4. When the setting you want to change is flashing, use Eand Bto change it as
described below.
Setting
GMT Differential
Longitude
Lunitidal Interval
Hours, Minutes
Screen Button Operations
Use E(+) and B(–) to change the setting.
•You can specify a value in the range of –11.0
to +14.0, in 0.5-hour units.
Use E(+) and B(–) to change the setting.
•You can specify a value in the range of
179°W to 180°E, in 1-degree units.
Use E(+) and B(–) to change the setting.
5. Press Ato exit the setting screen.
Vibration Alert
When Vibration Alert is turned on, the watch vibrates instead of sounding a beeper.
This lets you use the watch without disturbing others with beeping sounds.
•Vibration Alert can be used to replace alarm sounds.
•For information about selecting the alert type, see “To switch between vibration alert
and beeper alert”below.
•For information about countdown timer alerts, see “Countdown Timer”.
•For information about the daily alarm and hourly time signal alerts, see “Alarms”.
•Watches with a metal band may produce a noise when a vibration operation is
performed. This is due to vibration of the metal band, and does not indicate
malfunction of the watch.

Operation Guide 2941
2
To switch between vibration alert and beeper alert
In the Timekeeping Mode, hold down Efor about two
seconds to toggle between vibration alert (the vibration
alert on indicator displayed in all modes) and beeper alert
(the vibration alert on indicator not displayed).
Vibration alert on
indicator
Tide/Moon Data
Tide/Moon data lets you view the Moon phase for a
particular date, and tidal movements for a particular date
and time for the Home Site.
•When you enter the Tide/Moon Data Mode, the data for
6:00 a.m. on the current date appears first.
•If you suspect that the Tide/Moon data is not correct for
some reason, check the Timekeeping Mode data
(current time, date, and Home Site settings), and make
changes as required.
•See “Moon Phase Indicator”for information about the
Moon phase indicator and “Tide Graph”for information
about the tide graph.
•All of the operations in this section are performed in the
Tide/Moon Data Mode, which you enter by pressing D.
Month–Day
Time
Tide graph
Moon Phase Indicator
To view the Moon data for a particular date
In the Tide/Moon Data Mode, use E(+) and B(–) to display the date whose Moon
data you want to view.
•You can select any date from 2000 to 2039.
•You can also specify a date for tide data or Moon data. For details, see “To specify a
date”.
To view tide data for a particular time
1. In the Tide/Moon Data Mode, use E(+) and B(–) to display the date whose tide
data you want to view.
•The initial screen shows the tide graph for 6:00 AM.
2. Specify the time for which you want to display tide data.
•Use C(+) to change the time in one-hour steps.
To specify a date
1. In the Tide/Moon Data Mode, hold down Auntil the
month setting starts to flash, which indicates the setting
screen.
2. Press Dto move the flashing in the sequence shown
below to select the other settings.
Day YearMonth
3. While a setting is flashing, use E(+) or B(–) to
change it.
•You can specify a date in the range of January 1,
2000 to December 31, 2039.
4. Press Ato exit the setting screen.
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Year
Month–Day
World Time
The World Time Mode shows you the current time in 28
cities (29 time zones) around the world.
•The time settings of the Timekeeping Mode and the
World Time Mode are independent from each other, so
you must make separate settings for each.
•Whenever you change the time setting for any city in the
World Time Mode, the settings of all other cities are
changed accordingly.
•All of the operations in this section are performed in the
World Time Mode, which you enter by pressing D.
To view the time in another city
While in the World Time Mode, press Eto scroll through the city codes (time zones)
eastwardly or Bto scroll westwardly.
•For full information on city codes, see the “City Code Table”.
]WT
City code
Timekeeping Mode time
Current time in
selected city
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use Band Eto display the
city code (time zone) whose Standard Time/Daylight
Saving Time setting you want to change.
2. Hold down Cto toggle Daylight Saving Time (DST
indicator displayed) and Standard Time (DST indicator
not displayed).
•Note that you cannot switch between Standard Time
and Daylight Saving Time while GMT is selected as the
city code.
•The DST indicator will appear whenever you display a
city code for which Daylight Saving Time is turned on.
•Note that the DST/Standard Time setting affects only the
currently displayed city code. Other city codes are not
affected.
DST indicator
To set the current time in the World Time Mode
1. In the World Time Mode, use Eand Bto select the
city code whose time you want to set.
2. After you select a city code, hold down Auntil the hour
setting of the World time starts to flash, which indicates
the setting screen.
3. Use Dto move the flashing between the hour and
minute settings.
4. When the setting you want to change is flashing, use E(+) and B(–) to change it.
•When setting the world time using the 12-hour format, take care to set the time
correctly as a.m. (no indicator) or p.m. (Pindicator).
5. Press Ato exit the setting screen.
•Note that you cannot make settings for individual city codes. Daylight Saving Time
(summer time) advances the time setting of all the World Time Mode cities by one
hour from Standard Time. Remember that not all countries or even local areas use
Daylight Saving Time.
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Countdown Timer
The countdown timer can be set within a range of one
minute to 60 minutes. The currently selected alert
operation (beeper or vibration) is performed when the end
of the countdown is reached. The countdown timer has
two modes: auto-repeat and elapsed time. A progress
alert (beeper or vibration) signals the progress of the
countdown. All of this makes the countdown timer a
valuable tool for timing the start of a yacht race.
•You can select either beeper alert or vibration alert for
the alarm. The explanations in this section are based on
the beeper alert, unless stated otherwise.
•All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
D.
Minutes Seconds
Timekeeping Mode time
Configuring Countdown Timer Settings
The following are the settings you should configure before actually using the
countdown timer.
Countdown start time and reset time
Timer mode (auto-repeat, elapsed time)
•See “To configure countdown timer settings”for information about setting up the
timer.
Reset Time
You can set a “reset time,”which is a kind of alternate countdown start time. After you
set a reset time, you can recall with the press of a button any time a countdown
operation is in progress.
Timer Mode
The countdown timer gives you a choice of two modes: auto-repeat and elapsed time.
Auto-repeat
Auto-repeat automatically restarts the countdown from the countdown start time
whenever zero is reached.
•Auto-repeat mode is best when timing the starts of match races.
•Even if you start a countdown operation from the reset time, the countdown
automatically restarts from the countdown start time whenever it reaches zero.
•Auto repeat timing repeats up to seven times.
Elapsed Time
When the end of the countdown is reached in the elapsed time mode, the timer
automatically switches to an elapsed time measurement operation.
•The elapsed time mode is best when timing the speed of yachts during ocean races.
•The elapsed time operation is performed in one-second increments up to 99 hours,
59 minutes, 59 seconds.
Countdown Timer Alert Operations
While a countdown is in progress, the watch performs various different alert
operations, so you can keep informed of the countdown status, without looking at the
watch display. The following explains each of the countdown timer alert operations.
Countdown End Alert
The following countdown alert operations are performed for each of the final ten
seconds of the countdown, and when the countdown reaches zero.
Countdown
Final seconds 10 through 6 (5 times)
Final seconds 5 through 1 (5 times)
When the countdown reaches zero
Beep
High pitch
Lower pitch
Longer beep
Vibration
2 each
1 each
Longer vibration
•Except in the Stopwatch Mode, all buttons are disabled while a countdown end alert
operation is being performed.
Progress Alert
There are two types of progress alert: a reset time alert and a reset period progress
alert.
Reset Time Alert
The reset time alert is similar to the alert operations performed for each of the final 10
seconds of a countdown. For the reset time alert, the watch performs an alert
operation for each of the final 10 seconds before the reset time is reached.
•Except in the Stopwatch Mode, all buttons are disabled while a reset time alert is
being performed.
Reset Period Progress Alert
The reset period is the portion of the countdown between the reset time and zero.
During the reset period, the watch performs an alert operation at the top of each
minute, and at the point 30 seconds before the end of the countdown is reached. Each
reset period progress alert operation consists of four short beeps or two vibrations,
depending on the type of alert that is selected.
Countdown Timer Examples
Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Auto-repeat
10'00"
Start Time Reset Time
0'00"1'00" 0'30"2'00"3'00"4'00"5'00"
Reset Period
Reset Period Progress Alert
Countdown
End Alert
Reset Time Alert
Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Elapsed time
10'00" 0'00"
5'00"
Countdown
End Alert
Elapsed time
measurement
Start Time Reset Time
Reset Period
1'00" 0'30"2'00"3'00"4'00"
Reset Period Progress Alert
Reset Time Alert
To configure countdown timer settings
1. While the countdown start time is on the display in the
Countdown Timer Mode, hold down Auntil the
countdown start time setting 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 Dto move the flashing in the sequence shown
below to select other settings.
Reset
Time
Timer
Mode
Start
Time
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Auto–repeat indicator

Operation Guide 2941
3
Setting
Start Time
Reset Time
Timer Mode
Screen Button Operations
Use E(+) and B(–) to change the setting.
•You can set a start time in the range of 1 to 60 minutes
in 1-minute increments.
Use E(+) and B(–) to change the setting.
•You can set a reset time in the range of 1 to 5 minutes
in 1-minute increments.
Press Eto toggle between the auto-repeat mode ( )
and the elapsed time mode ( ).
•An auto-repeat indicator appears when the auto-repeat
mode is selected.
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4. Press Ato exit the setting screen.
•The reset time setting must be less than the countdown start time setting.
To use the countdown timer
In the Countdown Timer Mode, press Cto start the
countdown timer.
•The countdown timer measurement operation continues
even if you exit the Countdown Timer Mode.
•The table below describes button operations you can
perform to control countdown operations.
To do this:
Stop the countdown operation
Resume a stopped countdown operation
Display the countdown start time
Stop the countdown operation and display the reset time
Start the countdown from the displayed reset time
Do this:
Press C.
Press Cagain.
While the countdown is
stopped, press B.
Press B.
Press C.
To do this:
Stop the elapsed time operation
Resume a stopped elapsed time operation
Display the countdown start time
Stop the elapsed time operation and display the reset time
Start the countdown from the displayed reset time
Do this:
Press C.
Press Cagain.
While the elapsed time is
stopped, press B.
Press B.
Press C.
•The table below describes button operations you can perform during an elapsed
time measurement operation in the elapsed time mode.
Alarms
The Alarm Mode gives you a choice of three one-time
alarms and one snooze alarm.
When an alarm is turned on, an alert operation (beep or
vibration) is performed when the alarm time is reached.
You can also turn on an Hourly Time Signal (SIG) that
causes the watch to beep or vibrate every hour on the
hour.
•There are four alarms numbered AL1 through AL3,
and SNZ.You can configure SNZ as a snooze alarm
only. Alarms AL1 through AL3 can be used as one-
time alarms only.
•All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing D.
Timekeeping
Mode time
Alarm number
Alarm time
(Hour : Minutes)
To set an alarm time
1. In the Alarm Mode, use E(+) and B(–) to scroll
through the alarm screens until the one whose time you
want to set is displayed.
AL1 AL2 AL3
SIG SNZ
Press
E.
Press
B.
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 automatically turns on the alarm.
3. Use Dto move the flashing between the hour and
minute settings.
4. While a setting is flashing, use E(+) and B(–) to change it.
5. Press Ato exit the setting screen.
•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).
Alarm Operation
The alert operation (beep or vibration) is performed at the preset time for about 10
seconds, regardless of the mode the watch is in. In the case of the snooze alarm, the
alert operation is performed a total of seven times, every five minutes, or until you turn
the alarm off.
•Pressing any button stops the alert operation.
•Performing any one of the following operations during a 5-minute interval between
snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen
Displaying the snooze alarm setting screen
To test the alarm
In the Alarm Mode, hold down Eto perform the currently selected Alarm Mode alert
operation.
To turn an alarm on and off
1. In the Alarm Mode, use Eand Bto select an alarm.
2. Press Cto toggle it on and off.
•Turning on a one-time alarm (AL1, AL2, AL3)
displays the alarm on indicator on its Alarm Mode
screen. Turning on the snooze alarm (SNZ) displays
the alarm on indicator and the snooze alarm indicator on
its Alarm Mode screen.
•In all modes, the alarm on indicator is displayed for any
alarm that is currently turned on. When the snooze
alarm is on, the snooze alarm indicator is displayed in all
modes.
•The alarm on indicator flashes while an alert operation
is being performed.
•The snooze alarm indicator flashes during the 5-minute
intervals between alarms.
Alarm on indicator
Snooze alarm indicator
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use Eand Bto select the Hourly
Time Signal (SIG).
2. Press Cto toggle it on (Hourly Time Signal on
indicator displayed) and off (Hourly Time Signal on
indicator not displayed).
•The Hourly Time Signal on indicator is displayed in all
modes when the Hourly Time Signal 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 D.
Seconds
1/100 second
MinutesHours
To measure times with the stopwatch
C
Start Stop
Elapsed Time
➤
Re-start Clear
C➤
Stop
C➤C➤B
Split Time
C
Start Split
➤
Split release Clear
B➤
Stop
B➤C➤B
Two Finishes
C
Start Split
➤
Stop Clear
B➤
Split release
C➤B➤B
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
(SPL displayed)
Illumination
The 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 automatically
illuminates the display when you angle the watch towards
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 turn on illumination manually
In any mode, press Lto illuminate the display.
•You can specify 1.5 seconds or 3 seconds as the
illumination duration. See “To specify the illumination
duration”for more information.
•The above operation turns on illumination regardless of
the current auto light switch setting.
Auto light switch
on indicator
3. When the setting you want to change is flashing, use Eand Bto change it as
described below.
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 at more than 40 degrees causes illumination to turn on.
•Wear the watch on the outside of your wrist.
Parallel to
ground
More than
40°
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.

Operation Guide 2941
4
•The auto light switch on indicator is on the display in all modes while the auto light
switch is turned on.
To specify the illumination duration
1. In the Timekeeping Mode, hold down Auntil the
seconds start to flash, which indicates the setting
screen.
2. Press Bto toggle the illumination duration setting
between 3 seconds ( ) and 1.5 seconds ( ).
3. Press Atwice to exit the setting screen.
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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.
Moon Phase Indicator
The Moon phase indicator of this watch indicates the current phase of the Moon as
shown below.
Moon Phase
Indicator
Moon Age
Moon Phase
0, 1, 29 2 - 4 5, 6 7, 8 9, 10 11-13 14-16 17-19 20, 21 22, 23 24, 25 26-28
(part you cannot see) Moon phase (part you can see)
New
Moon
First
Quarter
(Waxing)
Full
Moon
Last
Quarter
(Waning)
•The Moon phase indicator shows the Moon as viewed at noon from a position in the
Northern Hemisphere looking south. Note that at times the image shown by the
Moon phase indicator may differ from that of the actual Moon in your area.
•The left-right orientation of the Moon phase is reversed when viewing from the
Southern Hemisphere or from a point near the equator.
Moon Phases and Moon Age
The Moon goes through a regular cycle that averages 29.53 days. During each cycle,
the Moon appears to wax and wane as the relative positioning of the Earth, Moon, and
Sun changes. The greater the angular distance between the Moon and the Sun,*the
more we see illuminated.
*The angle to the Moon in relation to the direction at which the Sun is visible from the
Earth.
This watch performs a rough calculation of the current Moon age starting from day 0
of the moon age cycle. Since this watch performs calculations using integer values
only (no fractions), the margin for error of the displayed Moon age is ±3 days.
Tide Graph
The Tide Graph screen shows one of three different waveforms to indicate spring tide,
intermediate tide, or neap tide as the current tide pattern. In addition, the current tide
level is indicated within the displayed tide pattern as a column of flashing dots.
•Spring Tide: Tides occurring at new and full Moons, when the range between high
and low tide is greatest.
•Neap Tide: Tides occurring at first and third Moon quarters, when the range between
high tide and low tide is smallest.
•Intermediate Tide: Indicates tide at the midpoint between spring tide and neap tide.
Low
Middle
High
Spring Tide Intermediate Tide Neap Tide
Tidal Movements
Tides are the periodic rise and fall of the water of oceans, seas, bays, and other
bodies of water caused mainly by the gravitational interactions between the Earth,
Moon and Sun. Tides rise and fall about every six hours. The tide graph of this watch
indicates tidal movement based on the Moon’s transit over a meridian and the lunitidal
interval. The lunitidal interval differs according to your current location, so you must
specify a lunitidal interval in order to obtain the correct tide graph readings.
•The tide graph displayed by this watch is based on the current Moon age.
Remember that the margin for error of the Moon age displayed by this watch is ±3
days. The greater the error in a particular Moon age, the greater the error in the
resulting tide graph.
Lunitidal Interval
Theoretically, high tide is at the Moon’s transit over the meridian and low tide is about
six hours later. Actual high tide occurs somewhat later, due to factors such as
viscosity, friction, and underwater topography. Both the time differential between the
Moon’s transit over the meridian until high tide and the time differential between the
Moon’s transit over the meridian until low tide are known as the “lunitidal interval.”
When setting the lunitidal interval for this watch, use the time differential between the
Moon’s transit over the meridian until high tide.
Auto Return Feature
If you leave a screen with flashing digits on the display for two or three minutes without
performing any operation, the watch automatically saves any settings you have made
up to that point and exits the setting screen.
Scrolling
The Band Ebuttons 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 through the data at high speed.
•The year can be set in the range of 2000 to 2039.
•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.
Illumination Precautions
•The electro-luminescent panel that provides illumination loses power after very long
use.
•Illumination may be hard 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 automatically turns off whenever an alarm operation (beep and
vibration) is performed.
•Frequent use of illumination runs down the battery.
More than 15 degrees
too high
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.
•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 (see “To specify the illumination duration”), 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 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 towards 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.
Pago Pago
Honolulu
Anchorage
Los Angeles
Denver
Chicago
New York
Caracas
Rio De Janeiro
London
Paris
City City GMT Other major cities in same time zone
Code Differential
City Code Table
PPG
HNL
ANC
LAX
DEN
CHI
NYC
CCS
RIO
–––
–––
GMT
LON
PAR
–11.0
–10.0
–09.0
–08.0
–07.0
–06.0
–05.0
–04.0
–03.0
–02.0
–01.0
+00.0
+01.0
Papeete
Nome
San Francisco, Las Vegas, Vancouver,
Seattle/Tacoma, Dawson City
El Paso, Edmonton
Houston, Dallas/Fort Worth,
New Orleans, Mexico City, Winnipeg
Montreal, Detroit, Miami, Boston,
Panama City, Havana, Lima, Bogota
La Paz, Santiago, Port Of Spain
Sao Paulo, Buenos Aires, Brasilia, Montevideo
Praia
Dublin, Lisbon, Casablanca, Dakar, Abidjan
Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
Berlin, Frankfurt, Vienna, Stockholm
Cairo
Jerusalem
Jeddah
Tehran
Dubai
Kabul
Karachi
Delhi
Dhaka
Yangon
Bangkok
Hong Kong
Tokyo
Adelaide
Sydney
Noumea
Wellington
+02.0
+03.0
+03.5
+04.0
+04.5
+05.0
+05.5
+06.0
+06.5
+07.0
+08.0
+09.0
+09.5
+10.0
+11.0
+12.0
Helsinki, Istanbul, Beirut, Damascus,
Cape Town, Athens
Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
Shiraz
Abu Dhabi, Muscat
Male
Mumbai, Kolkata
Colombo
Jakarta, Phnom Penh, Hanoi, Vientiane
Singapore, Kuala Lumpur, Beijing, Taipei, Manila, Perth,
Ulaanbaatar
Seoul, Pyongyang
Darwin
Melbourne, Guam, Rabaul
Port Vila
Christchurch, Nadi, Nauru Island
CAI
JRS
JED
THR
DXB
KBL
KHI
DEL
DAC
RGN
BKK
HKG
TYO
ADL
SYD
NOU
WLG
•Based on data as of June 2004.
To turn the auto light switch on and off
In any mode, hold down Lfor about two seconds to toggle the auto light switch on
(auto light switch on indicator displayed) and off (auto light switch on indicator not
displayed).
•In order to protect against runnning down the battery, the auto light switch will turn
off automatically approximately six hours after you turn it on. Repeat the above
procedure to turn the auto light switch back on if you want.
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.
•With the 12-hour format, the P(PM) indicator appears on the display for times in the
range of noon to 11:59 p.m. and no indicator appears 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
any indicator.
Anchorage –9.0 –8.0 149°W 5:40
Bahamas –5.0 –4.0 77°W 7:30
Baja, California –7.0 –6.0 110°W 8:40
Bangkok +7.0 +8.0 101°E 4:40
Boston –5.0 –4.0 71°W 11:20
Buenos Aires –3.0 –2.0 58°W 6:00
Casablanca +0.0 +1.0 8°W 1:30
Christmas Island +14.0 +15.0 (*)158°W 4:00
Dakar +0.0 +1.0 17°W 7:40
Gold Coast +10.0 +11.0 154°E 8:30
Great Barrier Reef, Cairns +10.0 +11.0 146°E 9:40
Guam +10.0 +11.0 145°E 7:40
Hamburg +1.0 +2.0 10°E 4:50
Hong Kong +8.0 +9.0 114°E 9:10
Site/Lunitidal Interval Data List
GMT Differential Lunitidal
Site Standard DST/ Longitude Interval
Time Summer Time
*This watch does not support a GMT differential of +15.0.

Operation Guide 2941
5
GMT Differential Lunitidal
Site Standard DST/ Longitude Interval
Time Summer Time
Honolulu –10.0 –9.0 158°W 3:40
Jakarta +7.0 +8.0 107°E 0:00
Jeddah +3.0 +4.0 39°E 6:30
Karachi +5.0 +6.0 67°E 10:10
Kona, Hawaii –10.0 –9.0 156°W 4:00
Lima –5.0 –4.0 77°W 5:20
Lisbon +0.0 +1.0 9°W 2:00
London +0.0 +1.0 0°E 1:10
Los Angeles –8.0 –7.0 118°W 9:20
Maldives +5.0 +6.0 74°E 0:10
Manila +8.0 +9.0 121°E 10:30
Mauritius +4.0 +5.0 57°E 0:50
Melbourne +10.0 +11.0 145°E 2:10
Miami –5.0 –4.0 80°W 7:30
Noumea +11.0 +12.0 166°E 8:30
Pago Pago –11.0 –10.0 171°W 6:40
Palau +9.0 +10.0 135°E 7:30
Panama City –5.0 –4.0 80°W 3:00
Papeete –10.0 –9.0 150°W 0:10
Rio De Janeiro –3.0 –2.0 43°W 3:10
Seattle –8.0 –7.0 122°W 4:20
Shanghai +8.0 +9.0 121°E 1:20
Singapore +8.0 +9.0 104°E 10:20
Sydney +10.0 +11.0 151°E 8:40
Tokyo +9.0 +10.0 140°E 5:20
Vancouver –8.0 –7.0 123°W 5:10
Wellington +12.0 +13.0 175°E 4:50
• Based on data as of 2003.