MO1005-EA
Operation Guide 3214
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.
• 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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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
Dis-
charge
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Some or all
functions
disabled
• 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.
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.
Timekeeping Mode
Press C.
Tide/Moon Data Mode
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▲
Timekeeping
Press the A button 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
Day of week Month – Day
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Hour : Minutes
Seconds
PM indicator
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.
To set the time and date manually
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1. In the Timekeeping Mode hold down A until the city
2. Use D and B to select the city code you want.
A
▲
A
code starts to flash, which indicates the setting screen.
• Make sure you select your Home City code before
changing any other setting.
• For full information on city codes, see the “City Code
Table”.
Dual Time
Dual timeCity code
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Alarm Mode
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▲
World Time Mode
▲
Countdown Timer Mode Stopwatch Mode
▲
3. Press C to move the flashing in the sequence shown below to select the other
settings.
12/24-Hour
City Code
• The following steps explain how to configure timekeeping settings only.
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:
DST
Illumination
Duration
Format
Change the city code
Toggle between Daylight Saving Time (ON)
and Standard Time (OFF).
Toggle between 12-hour (
hour ( ) timekeeping
Reset the seconds to
Change the hour and minutes
Change the year, month, or day
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.
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 (
)
Seconds
Button
Operation Tone
) and 24-
) and
DayPower Saving
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.
Hour
Month
Minutes
Year
▲
1
Operation Guide 3214
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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
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DST indicator
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 cycle through the DST settings in the
sequence shown below.
4. When the setting you want is selected, press A to exit
the setting screen.
• The DST indicator appears to indicate that Daylight
Saving Time is turned on.
Tide/Moon Data
In the Tide/Moon Data Mode, you can see the current tide 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.
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 Home City on the current date,
according to the Timekeeping Mode. From there you can specify another date or time.
• If the tide data is not correct, check your Timekeeping Mode settings and correct
them if necessary.
• 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.
• 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
• Use the Moon Data Screen to specify the Tide/Moon Data date. You can use D (+)
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
Tide Data Screen Moon Data Screen
Current tide range
Time Moon age
Month – Day
Current
tide level
Press A.
▲
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Moon phase
▲
Month – Day
change the displayed time in one-hour increments.
to change the displayed date in one-day increments. Pressing D will display the
year of the displayed date.
1. In the Tide/Moon Data Mode, hold down A until the
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Minute
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hour digits start to flash.
2. Use D (+) and B (–) to change the hour setting.
3. When the hour is the setting you want, press C.
• This will cause the minute digits to flash.
4. Use D (+) and B (–) to change the minute setting.
5. 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 2 through 5
above) will return the high tide time to its initial factory
default setting.
• The high tide time setting is not affected by the DST
(summer time) setting of the Timekeeping Mode.
• 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
1. In the Tide/Moon Data Mode, hold down A until the
hour digits start to flash.
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, use the 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, use 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.
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
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
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
screens until the one whose time you want to set is
displayed.
SNZ screen.
SNZ
setting screen
SNZ. The Hourly Time
SIG.
AL1, AL2,
2