Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.
• 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.
• The 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.
• 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.
Keep the watch exposed to bright light
Bright Light
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Solar cell
• 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.
Battery charges in the light.Battery discharges in the dark.
Solar cell
(Converts light to
electrical power.)
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Bright Light
LEVEL 1
LEVEL 2
LEVEL 3
Charge
LEVEL 4
Rechargeable battery
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General Guide
• Press C to change from mode to mode.
• In any mode (except when a setting screen is on the display), press B to illuminate
the display.
• When you return to the Timekeeping Mode, the day of the week will be displayed
after the name of the site you selected. See “Tide Site Name List” for more
information about the site.
Timekeeping Mode
Warning!
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.
Electrical
energy
All
functions
enabled
Press C.
Tide/Moon Data Mode
▲
Dis-
charge
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LEVEL 1
LEVEL 2
Some or all
LEVEL 3
functions
LEVEL 4
disabled
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▲
• 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 about 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
• 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.
▲
World Time Mode
▲
Alarm Mode
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Countdown Timer ModeStopwatch Mode
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▲
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▲
Timekeeping
Current Time
Day of week
PM indicator
Site name
Month – Day
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Hour : Minutes
Seconds
▲
▲
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To set the time and date manually
3. Press C to move the flashing in the sequence shown below to select the other
settings.
City Code
• The following steps explain how to configure timekeeping settings only.
Press the A button to view the current site name setting.
Use the Timekeeping Mode to set and view the current
time and date.
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
A
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.
1. In the Timekeeping Mode hold down A until the city
code starts to flash, which indicates the setting screen.
2. Use D and B to 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 “City Code
Table”.
12/24-Hour
DST
Illumination
Duration
Format
Seconds
Button
Operation Tone
DayPower Saving
Hour
Month
Minutes
Year
4. When the timekeeping setting you want to change is flashing, use D or B to
change it as described below.
Screen:To do this:Do this:
5. Press A to exit the setting screen.
• The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
Change the city code
Toggle between Daylight Saving Time
() and Standard Time ().
Toggle between 12-hour (
hour () timekeeping
Reset the seconds to
Change the hour and minutes
Change the year, month, or day
Toggle the button operation tone between
/
(on) and (off)
Toggle the illumination duration between
(approximately 1.5 seconds) and
(approximately 3 seconds).
Toggle between Power Saving on (
off (
)
) and 24-
) and
Use D (east) and B
(west).
Press D.
Press D.
Press D.
Use D (+) and B (–).
Use D (+) and B (–).
Press D.
Press D.
Press D.
1
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Operation Guide 3216
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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
any indicator.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
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
DST indicator
4. When the setting you want is selected, press A twice to exit the setting screen.
• The DST indicator appears to indicate that Daylight Saving Time is turned on.
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C and the DST setting screen appears.
3. Use D to toggle the DST settings in the sequence
shown below.
DST off (
)DST on ( )
Tide/Moon Data
In the Tide/Moon Data Mode, you can see the tide for the tide site you selected at
specified time and the current date’s moon phase for your Home City. You can specify
a date and view tide and moon data for that date.
• 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.
Note
• It takes about two seconds to calculate tide graph data. You will not be able to
display a setting screen while data calculation is in progress.
• Moon age is calculated to an accuracy of ±1 day.
• You can view the current tide and moon age graph in the Timekeeping Mode.
Tide Data
The Tide Graph that appears first when you enter the Tide/Moon Data Mode shows
the data at 6:00 a.m. for your currently selected tide site on the current date, according
to the Timekeeping Mode. From there you can specify another time on the same date.
• If the tide data is not correct, check your Timekeeping Mode settings and correct
them if necessary. See “To configure tide site settings” for more information.
• If you feel that the information shown by the Tide Graph is different from actual tide
conditions, you need to adjust the high tide time. See “Adjusting the High Tide Time”
for more information.
Moon Data
The moon phase and moon age information that appears first when you enter the
Tide/Moon Data Mode shows the data at noon for your currently selected Home City
on the current date, according to the Timekeeping Mode. After that you can specify
another date to view data.
• If the moon data is not correct, check your Timekeeping Mode settings and correct
them if necessary.
• If the moon phase indicator shows a phase that is a mirror image of the actual moon
phase in your area, you can use the procedure under “Reversing the Displayed
Moon Phase” to change it.
Tide/Moon Data Screens
In the Tide/Moon Data Mode, press A to toggle between the tide data screen and the
moon data screen.
Tide Data ScreenMoon Data Screen
Current tide range
• When you display the Tide Data Screen, it initially shows tide data for 6:00 a.m.
• Use the Tide Data Screen to specify the Tide Data time. You can use D to change
the displayed time in one-hour increments. The Tide Data time is scrolled within the
current date only. Scrolling past midnight does not change the date.
• Use the Moon Data Screen to specify the Tide/Moon Data date. You can use D to
change the displayed date in one-day increments. Pressing D will display the year
of the displayed date.
Adjusting the High Tide Time
Use the following procedure to adjust the high tide time within a particular date. You
can find out high tide information for your area from a tide table, the Internet, or your
local newspaper.
To adjust the high tide time
Hour
Minute
Current
tide level
Press A.
▲
▲
Time
Month – Day
1. In the Tide/Moon Data Mode, use A to display the
Moon Data Screen.
2. Use D to scroll the date until one whose high tide time
you want to change is displayed.
3. Hold down A until the hour digits start to flash.
4. Use D (+) and B (–) to change the hour setting.
5. When the hour is the setting you want, press C.
• This will cause the minute digits to flash.
6. Use D (+) and B (–) to change the minute setting.
7. When the minute setting is the way you want, press A
to exit the adjustment screen and return to the Tide/
Moon Data Mode screen.
• Pressing D and B at the same time while the time
adjustment screen is displayed (steps 4 through 7
above) will return the high tide time to its initial factory
default setting.
• The high tide time setting is affected by the DST
(summer time) setting of the Timekeeping Mode.
Moon age
Moon phase
Month – Day
• On some days, there are two high tides. With this watch, you can adjust the first high
tide time only. The second high tide time for that day is adjusted automatically based
on the first high tide time.
Reversing the Displayed Moon Phase
The left-right (east-west) appearance of the Moon depends on whether the Moon is
north of you (northerly view) or south of you (southerly view) as you view it.
You can use the procedure below to reverse the displayed Moon phase so it matches
the actual appearance of the Moon where you are located.
• To determine the viewing direction of the Moon, use a compass to take a direction
reading of the Moon at its meridian passage.
• For information about the Moon phase indicator, see “Moon Phase Indicator”.
To reverse the displayed Moon phase
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1. In the Tide/Moon Data Mode, hold down A until the
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hour digits start to flash.
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2. Press C twice.
• This will cause the Moon phase indicator to flash. This
is the indicator switching screen.
3. Press D to toggle the Moon phase indicator between
the southerly view (indicated by
view (indicated by
• Northerly view: Moon is north of you.
• Southerly view: Moon is south of you.
4. When the Moon phase indicator setting is the way you
want, press A to exit the switching screen and return
to the Tide/Moon Data Mode screen.
).
) and northerly
World Time
City code
Current time in
selected city
To view the time in another city
While in the World Time Mode, press D (eastward) to scroll through the city codes
(time zones).
• Pressing the D and B at the same time will jump to the UTC time zone.
To toggle a city code time between Standard Time and Daylight Saving Time
DST indicator
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 “City Code Table” 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.
1. In the World Time Mode, press D to display the city
code (time zone) whose Standard Time/Daylight Saving
Time setting you want to change.
2. Hold down A to 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.
• Note that the Standard Time/Daylight Saving Time
setting affects only the currently displayed city code.
Other city codes are not affected.
• Note that you cannot switch between Standard Time
and Daylight Saving Time while UTC is selected as the
city code.
Alarms
Alarm number
Alarm time
(Hour : Minutes)
To set an alarm time
• To set a one-time alarm, display alarm screen AL1, AL2, AL3 or AL4.
To set the snooze alarm, display the
• The snooze alarm repeats every five minutes.
2. After you select an alarm, hold down A until the hour setting of the alarm time
starts to flash, which indicates the setting screen.
• This operation turns on the alarm automatically.
3. Press C to move the flashing between the hour and minute settings.
4. While a setting is flashing, use D (+) and B (–) to change it.
• With the 12-hour format, set the time correctly as a.m. or p.m. (P indicator).
5. Press A to exit the setting screen.
The Alarm Mode gives you a choice of four one-time
alarms and one snooze alarm.
Also use the Alarm Mode to turn the Hourly Time Signal
(
SIG) on and off.
• There are five alarm screens numbered
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AL3 and AL4 for the one-time alarm, and a snooze
alarm screen indicated by
Signal screen is indicated by
• All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
1. In the Alarm Mode, use D to scroll through the alarm
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screens until the one whose time you want to set is
displayed.
SNZ screen.
SNZ. The Hourly Time
SIG.
AL1, AL2,
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Page 3
Operation Guide 3216
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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
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
To turn an alarm on and off
Snooze alarm
indicator
To turn the Hourly Time Signal on and off
SNZ
ON
Alarm on indicator
Hourly time signal
on indicator
setting screen
1. In the Alarm Mode, use D to select an alarm.
2. Press A to toggle it on and off.
• Turning on a alarm (
SNZ) displays the alarm on indicator on its Alarm Mode
screen.
• In all modes, the alarm on indicator is shown for any
alarm that currently is turned on.
• The alarm on indicator flashes while the alarm is
sounding.
• The snooze alarm indicator flashes while the snooze
alarm is sounding and during the 5-minute intervals
between alarms.
1. In the Alarm Mode, use D to select the Hourly Time
Signal (
2. Press A to 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.
AL1, AL2, AL3, AL4 or
SIG).
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two finishes.
• The display range of the stopwatch is 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.
Minutes
Seconds
1/100 second
To measure times with the stopwatch
Elapsed Time
D
Start
Split Time
D
Start
Two Finishes
D
Start
D
➤➤➤
StopRe-startStop
A
➤➤➤
Split
(SPL displayed)
A
➤➤➤
Split
First runner finishes.
Display time of first
runner.
D
A
Split releaseStop
D
Stop
Second runner
finishes.
D
D
A
Split release
Display time of
second runner.
A
➤
Clear
A
➤
Clear
A
➤
Clear
Countdown Timer
Number of Repeats
Minutes
Seconds
Timer 1
Countdown End Beeper
The countdown end beeper lets you know when the countdown reaches zero. The
beeper stops after about 5 seconds or when you press any button.
To configure the countdown timer
Dual timers can be set with two different starting times.
The watch can be configured so the two timers alternate,
so when one reaches the end of its countdown, the other
timer starts. You can specify a “number of repeats” value,
which controls how many times the two-timer countdown
operation is performed (1 = once, 2 = twice, etc.). The
starting time of each timer can be set in five-second steps
up to 99 minutes, 55 seconds.
You can specify up to 10 repeats. The watch emits a short
beep whenever either of the timers reaches the end of its
countdown during an ongoing timer operation. The watch
emits a 5-second beep when the end of the final timer
operation (specified by the number of repeats) is reached.
1.While the countdown start time is on the display in the
Countdown Timer Mode, hold down A until 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 C to move the flashing in the sequence shown
below to select other settings.
3. When the setting you want to change is flashing, use D and B to change it as
described below.
Setting
Minutes, Seconds
Number of Repeats
• To disable either timer, set 00'00" as its countdown start time.
4. Press A to exit the setting screen.
Screen
Use D (+) and B (–) to change the setting.
Use D (+) and B (–) to change the setting.
Button Operation
To use the countdown timer
Current repeat count
(Reset)
Current timer time
Press D while in the Countdown Timer Mode to start the countdown timer.
• The countdown is performed by alternating between Timer 1 and Timer 2. A short
beep is emitted to signal a changeover from one timer to the other.
•
Pressing A while a countdown timer is stopped resets it to the start time specified by you.
• Press D to pause a countdown. Press D again to resume.
• The watch emits a 5-second beep when the end of the final timer operation
(specified by the number of repeats) is reached.
• Even if you exit the Countdown Timer Mode, the countdown timer operation
continues and the watch beeps as required.
• To stop a countdown operation completely, first pause it (by pressing D), and then
press A. This returns the countdown time to its starting value.
Present number of repeats
Current time
(Start/Stop)
Timer 1 or 2
Illumination
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Auto light switch on
indicator
To illuminate the display manually
In any mode (except when a setting screen is on the display), press B to turn on
illumination.
• The above operation turns on illumination regardless of the current auto light switch
setting.
• You can use the procedure below to select either 1.5 seconds or 3 seconds as the
illumination duration. When you press B, 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
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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. Note that this watch features a “Full Auto
EL Light”, so the auto light switch operates only when available light is below a certain
level. It does not turn on the backlight under bright light.
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.
• Wear the watch on the outside of your wrist.
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 B for about three seconds to toggle the auto
light switch on (auto light switch on indicator displayed) and off (auto light switch on
indicator not displayed).
• The auto light switch on indicator is on the display in all modes while the auto light
switch is turned on.
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 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.
1. In the Timekeeping Mode, hold down A until the
display contents start to flash. This is the setting screen.
2. Press C 10 times until the current illumination duration
setting (
3. Press D to toggle the setting between
(approximately 1.5 seconds) and (approximately
3 seconds).
4. Press A to exit the setting screen.
Parallel to
ground
or ) appears.
More than 40°
3
Page 4
Operation Guide 3216
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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.
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.
• 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.
• 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.
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Level
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Battery power
indicator
• 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.
•
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 that is higher
than the actual battery level. The correct battery level should be indicated after a few
minutes.
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 a 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
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.
Battery Power Indicator
1
2
3
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(Charge Soon Alert)
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• Performing illumination, or beeper operations during a
short period may cause the recover indicator to appear
on the display.
After some time, battery power will recover and the
recover indicator will disappear, indicating that the above
functions are enabled again.
• If the recover indicator appears frequently, it probably
means that remaining battery power is low. Leave the
watch in bright light to allow it to charge.
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)
• 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.
Solar cell
Function Status
All functions enabled.
All functions enabled.
Illumination, and beeper
disabled.
Except for timekeeping and
the CHG (charge) indicator,
all functions and display
indicators disabled.
All functions disabled.
Approximate
Exposure Time
5 minutes
24 minutes
48 minutes
8 hours
Recovery Times
The table below shows the amount exposure that is required to take the battery from
one level to the next.
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)
• The above exposure time values are all for reference only. Actual required exposure
times depend on lighting conditions.
Approximate Exposure Time
Level 5Level 4Level 3Level 2Level 1
▲
▲
2 hours20 hours6 hours
8 hours99 hours27 hours
15 hours- - - - - - - - - - - - - - - -
172 hours- - - - - - - - - - - - - - - -
Tide Site Name
Selecting the Tide Site Name
The tide site names you can select depend on your current Home City setting.
• Select tide site names in the Timekeeping Mode.
• After configuring the settings for your Home City, press A once to display the tide
site name selection screen.
• Note that the tide sites you can select are those located in the same time zone as
your Home City. They are not necessarily located near your Home City.
To configure tide site settings
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• Setting an accurate high tide time will allow the watch to produce accurate tide
readings. Especially when “USER” is selected as the site, make sure that you input
an accurate high tide time.
• Only a “USER” site can be selected while UTC is selected as the Home City.
1. In the Timekeeping Mode, hold down A for about two
seconds until the city code starts to flash. This is the
setting screen.
• The watch will exit the setting screen automatically if
you do not perform any operation for about two or
three minutes.
2. Press A once to display the tide site name selection
screen.
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• The current tide site name will be on the display and
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SET will flash.
3. Use D (forward) and B (back) to scroll through the
tide site names until the one you want is displayed.
• If the tide site name is longer than four characters, the
name will scroll from right to left on the display.
• A tide site that does not have any data assigned to it
displays the name “USER”.
4. When all of the settings are the way you want, press A
to exit the setting screen.
• The tide graph in the Timekeeping Mode shows
information for the site you select here.
• The tide site candidates are those with the UTC
differential as the current Home City. If you cannot find
the site you want, you can select “USER”.
• Only “USER” sites may be available for some cities.
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
Moon Phase indicator
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Moon
Phase
Indicator
Moon Age
Moon Phase
Moon phase (part you can see)(part you cannot see)
Moon
Phase
Indicator
Moon Age
Moon Phase
The Moon phase indicator of this watch indicates the
current phase of the Moon as shown below. It is based on
the view of the left side of the moon at meridian transit
from the northern hemisphere of the Earth. If the
appearance of the Moon phase indicator is reversed from
the actual Moon as viewed from your location, you can
use the procedure under “To reverse the displayed Moon
phase” to change the indicator.
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 Tide Graph calculates and graphically represents current tide conditions
in your currently selected site or USER site based on longitudes, lunar day length, and
lunitidal interval preset in watch memory, and on high tide times specified by you.
Tide Graph
The Tide Graph graphically represents the current tide condition using one of three
patterns that represent spring tide, intermediate tide, and neap tide, as shown below.
Tide NameGraphDescription
Spring Tide
Intermediate Tide
Neap Tide
•
The Tide Graph flashes as shown below to indicate the tide range.
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• The segments on either end of the Tide Graph flash during high tide.
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”.
Tides data is calculated using the lunitidal intervals preset for each site.
Button Operation Tone
Mute indicator
To turn the button operation tone on and off
Power Saving Function
Power saving indicator
Elapsed Time
in Dark
60 to 70 minutes
6 or 7 days
• 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.
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 towards your face for reading.
To turn Power Saving on and off
On/Off status
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, alarms,
the Hourly Time Signal, and other beepers all operate
normally.
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C nine times until the current button operation
tone setting (
3. Press D to toggle the setting between
and
4. Press A to exit the setting screen.
• The mute indicator is displayed in all modes when the
button operation tone is turned off.
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.
Display
Blank, with Power Saving
indicator flashing
Blank, with Power Saving
indicator not flashing
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C 11 times until the Power Saving on/off screen
appears.
3. Press D to toggle Power Saving on (
(
4. Press A to exit the setting screen.
• The Power Saving indicator is on the display in all
modes while Power Saving is turned on.
Large difference between high tide
and low tide. Occurs a few days
before and after a New Moon and Full
Moon.
Medium difference between high tide
and low tide.
Small difference between high tide
and low tide. Occurs a few days
before and after the first quarter and
last quarter of a half moon.
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High tideLow tide
or ) appears.
(tone off).
All functions enabled, except for the
display
Beeper tone, illumination, and display
are disabled.
).
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Operation
(tone on)
) and off
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 B and D 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.
• 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.
More than 15 degrees
too high
• 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 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.
• 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 a preset amount of time (1.5
or 3 seconds), even if you keep the watch pointed
towards your face.
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); Checking a Tide Site
Tide/Moon Data:
Moon phase indicator for specific date; Tide level for specific date and time
Other: High tide time adjustment; Moon phase reversal
World Time: 48 cities (31 time zones)
Other: Daylight Saving Time/Standard Time
Alarms: 5 daily alarms (four one-time alarms; one snooze alarm); Hourly Time Signal
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 59' 59.99''
Measuring modes: Elapsed time, split time, two finishes
Countdown Timer:
Number of timers: 2 (one set)
Setting unit: 5 seconds
Range: 99 minutes 55 seconds each timer
Countdown unit: 1 second
Number of repeats: 1 to 10
5-second time up beeper
Illumination: EL (electro-luminescent panel); Full Auto Light Switch; Selectable
illumination duration
Other: Button operation tone on/off
Power Supply: Solar cell and one rechargeable battery
Approximate battery operating time: 11 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
5
Page 6
Operation Guide 3216
City Code Table
City
Code
PPG
ANC
YVR
DEN
MEX
NYC
LON
MAD
ROM
BER
• Based on data as of December 2009.
• The rules governing global times (UTC offset and GMT differential) and summer