MA1903-EA © 2019 CASIO COMPUTER CO., LTD.
Operation Guide 3473/3474
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.
x Be sure to keep all user documentation handy for future reference.
Warning!
x 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.
x 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.
x 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.
E-1
About This Manual
x The operational procedures for Modules 3473 and 3474 are identical. All of the illustrations in this manual show Module 3473.
x The module number is engraved on the back cover of the watch case.
Alarm on indicator |
Alarm on indicator |
Hourly time |
Hourly time |
signal on |
signal on |
indicator |
indicator |
x Button operations are indicated using the letters shown in the illustration.
x Note that the product illustrations in this manual are intended for reference only, and so the actual product may appear somewhat different than depicted by an illustration.
x 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.
x To ensure that this watch provides you with the years of service for which it is designed, be sure to carefully read and follow the instructions under “Operating Precautions“ and “User Maintenance”.
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Module 3473 |
Module 3474 |
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E-3 |
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Contents |
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Stopwatch |
E-24 |
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..........................................................To measure times with the stopwatch |
E-25 |
Getting Acquainted ............................................................................................ |
E-1 |
General Guide..................................................................................................... |
E-8 |
Timekeeping ..................................................................................................... |
E-10 |
To set the time and date............................................................................... |
E-11 |
To toggle the Timekeeping Mode time between DST and Standard Time.... |
E-14 |
To configure Home Site data........................................................................ |
E-17 |
To toggle between 12-hour and 24-hour timekeeping.................................. |
E-19 |
Moon/Tide Data................................................................................................ |
E-20 |
To view the current Moon/Tide Data Mode data .......................................... |
E-21 |
To specify a date .......................................................................................... |
E-23 |
E-4
Countdown Timer............................................................................................. |
E-26 |
To use the countdown timer......................................................................... |
E-27 |
To set up the countdown timer..................................................................... |
E-28 |
Alarms............................................................................................................... |
E-30 |
To set an alarm time ..................................................................................... |
E-32 |
To test the alarm........................................................................................... |
E-34 |
To turn Alarms 2 and 3, and the Hourly Time Signal on and off.................... |
E-35 |
To select the operation of Alarm 1................................................................ |
E-36 |
Dual Time.......................................................................................................... |
E-37 |
To set the Dual Time..................................................................................... |
E-38 |
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E-5 |
Illumination ....................................................................................................... |
E-40 |
To illuminate the display ............................................................................... |
E-40 |
To specify the illumination duration .............................................................. |
E-41 |
Reference ......................................................................................................... |
E-42 |
To turn the button operation tone on and off................................................ |
E-46 |
Specifications................................................................................................... |
E-49 |
Operating Precautions..................................................................................... |
E-52 |
User Maintenance ............................................................................................ |
E-62 |
E-6 |
E-7 |
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General Guide
Countdown Timer Mode |
Alarm Mode |
x Press C to change from mode to mode.
x In any mode (except when a setting screen is on the display), press B to illuminate the face of the watch.
Timekeeping Mode |
Moon/Tide Data Mode |
Stopwatch Mode |
C 
C 
C
E-8
C 
C
Dual Time Mode
C
E-9
Operation Guide 3473/3474
Timekeeping
PM indicator
Day of week
Month – Day
Seconds
Tide graph |
Hour : Minutes |
Moon phase indicator |
E-10 |
Use the Timekeeping Mode to set and view the current time and date.
xThe Moon phase indicator (page E-42) shows the current Moon phase in accordance with the current date as kept in the Timekeeping Mode.
xThe tide graph (page E-44) shows tidal movements for the current date in accordance with the current time as kept in the Timekeeping Mode.
Important!
x Be sure to configure the current time and date, and your Home Site data (data for the site where you use the watch) correctly before using the functions of this watch. See “Home Site Data” (page E-15) for more information.
To set the time and date
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1. |
In the Timekeeping Mode, hold down A until the |
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seconds start to flash, which indicates the setting |
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screen. |
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2. |
Press C to move the flashing in the sequence shown |
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below to select the other settings. |
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C |
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C |
C |
Seconds |
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DST |
Hour |
Minutes |
C |
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C |
Day |
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Month |
Year |
CC
E-11
3.When the setting you want to change is flashing, use B and D to change it as described below.
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To do this: |
Do this: |
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Reset the seconds to 00 |
Press D. |
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Toggle between Daylight Saving Time (On) and |
Press D. |
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Standard Time (OF) |
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Change the hour or minutes |
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Use D (+) and B (–). |
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Change the year |
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Change the month or day |
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E-12
4.Press A twice to exit the setting screen.
x The first press of A displays the UTC differential setting screen. Pressing A again exits the setting screen.
x See “Daylight Saving Time (DST) Setting” below for details about the DST setting.
x The day of the week is displayed automatically in accordance with the date (year, month, and day) settings.
Daylight Saving Time (DST) Setting
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.
E-13
To toggle the Timekeeping Mode time between DST and Standard Time
1. In the Timekeeping Mode, hold down A until the seconds start to flash, which indicates the setting screen.
2. Press C once to display the DST setting screen.
3. Press D to toggle between Daylight Saving Time (On displayed) and Standard Time (OF displayed).
4. Press A twice to exit the setting screen.
x The DST indicator appears on the Timekeeping, Moon/Tide Data, and Alarm Mode screens to indicate that Daylight Saving Time is turned on. In the case of the Moon/Tide Data Mode, the DST indicator appears on the tide data screen only.
Home Site Data
Moon phase, tide graph data, and Moon/Tide Data Mode data will not be displayed properly unless Home Site data (UTC differential, longitude, and lunitidal interval) is configured correctly.
x The UTC differential is a value that indicates the time difference between a reference point in Greenwich, England and the time zone where a city is located.
x The letters “UTC” is the abbreviation for “Coordinated Universal Time”, which is the world-wide scientific standard of timekeeping. It is based upon carefully maintained atomic (cesium) clocks that keep time accurately to within microseconds. Leap seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s rotation.
x 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” (page E-45) for more information.
x This watch displays lunitidal intervals in terms of hours and minutes.
x The “Site/Lunitidal Interval Data List” at the back of this manual provides UTC differential and longitude information around the world.
E-14 |
E-15 |
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x 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.
UTC differential (+9.0); Longitude (East 140 degrees); Lunitidal interval (5 hours, 20 minutes)
To configure Home Site data
1. In the Timekeeping Mode, hold down A until the seconds start to flash, which indicates the setting
screen.
2. Press A again to display the UTC differential setting screen.
3. Press C to move the flashing in the sequence shown
below to select other settings.
UTC differential
CC
UTC Differential |
Longitude Value |
East Longitude/ |
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West Longitude |
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Lunitidal Interval Minutes |
Lunitidal Interval Hours |
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E-17 |
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4.When the setting you want to change is flashing, use D and B to change it as described below.
Setting |
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Button Operations |
UTC Differential |
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Use D (+) and B (–) to change the setting. |
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x You can specify a value in the range of –12.0 to |
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+14.0, in 0.5-hour units. |
Longitude Value |
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Use D (+) and B (–) to change the setting. |
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x You can specify a value in the range of 0° to 180°, |
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in 1-degree units. |
East Longitude/ |
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Use D to switch between east longitude (E) and |
West Longitude |
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west longitude (W). |
Lunitidal Interval Hours, |
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Use D (+) and B (–) to change the setting. |
Minutes |
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x When the DST setting is on, the UTC differential can be set in a range of –11.0 to +15.0 in 0.5-hour units.
5. Press A to exit the setting screen.
To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press D to toggle between 12-hour timekeeping and 24-hour timekeeping.
x 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 the A (AM) indicator appears to the left of the hour digits for times in the range of midnight to 11:59 a.m.
x With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without any indicator.
xThe 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is applied in all other modes.
xThe A and P indicators are not displayed with the Timekeeping Mode time on the Countdown Timer Mode and Dual Time Mode screens.
E-18 |
E-19 |
Operation Guide 3473/3474
Moon/Tide Data
Tide Data Screen
Month – Day
Year Time
Tide graph
Moon phase indicator
Moon/tide data lets you view the Moon age and Moon phase for a particular date, and tidal movements for a particular date and time at your Home Site.
x If you suspect that the current Moon/tide data is wrong for some reason, check the current Timekeeping Mode settings (time, date, and Home Site), and correct them if required.
xSee “Moon Phase Indicator” (page E-42) for information about the Moon phase indicator and “Tide Graph” (page E-44) for information about the tide graph.
xAll of the operations in this section are performed in the Moon/Tide Data Mode, which you enter by pressing C (page E-8).
E-20
To view the current Moon/Tide Data Mode data
In the Moon/Tide Data Mode, press A to toggle between the tide data screen and the Moon data screen.
x The tide graph shows the tide for the currently displayed time. The initial tide data screen shows the level for 6:00 a.m. The Moon data screen shows the Moon age and Moon phase for the current date.
x If you are using 12-hour timekeeping, P (p.m.) or A (a.m.) will be indicated for the times on tide data screens.
E-21
Tide Data Screen |
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Moon Data Screen |
Year |
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Month – Day |
A |
Year |
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Month – Day |
Tide graph |
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Moon age |
Time |
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Moon phase indicator |
x While the tide data screen is displayed, press D to advance to the next hour. x While the Moon data screen is displayed, press D to advance to the next day.
x You can also specify a particular date (year, month, day) to view its tide data and Moon data. See “To specify a date” for more information.
x When you enter the Moon/Tide Data Mode, the screen (tide data or Moon data) that was displayed the last time you exited the mode appears first.
E-22
To specify a date
Month – Day |
1. |
In the Moon/Tide Data Mode, hold down A until the |
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year setting starts to flash, which indicates the setting |
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screen. |
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2. |
Press C to move the flashing in the sequence shown |
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below to select the other settings. |
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C |
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C |
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Year |
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Month |
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Day |
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Year
3.While a setting is flashing, use D (+) or B (–) to change it.
x You can specify a date in the range of January 1, 2000 to December 31, 2099.
4.Press A to exit the setting screen.
5.Use A to display either the tide data screen or the Moon data screen.
E-23
Stopwatch
1/100 second
Hours
Seconds
Minutes
The stopwatch lets you measure elapsed time, split times, and two finishes.
x The display range of the stopwatch is 23 hours, 59 minutes, 59.99 seconds.
x The stopwatch continues to run, restarting from zero after it reaches its limit, until you stop it.
x An ongoing elapsed time measurement operation will continue internally even if you change to another mode. However, if you exit the Stopwatch Mode while a split time is displayed, the split time will not be displayed when you return to the Stopwatch Mode.
x All of the operations in this section are performed in the Stopwatch Mode, which you enter by pressing C (page E-8).
E-24
To measure times with the stopwatch |
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Elapsed Time |
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D |
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A |
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Start |
Stop |
Resume |
Stop |
Clear |
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Split Time |
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Start |
Split |
Split release |
Stop |
Clear |
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(SPL displayed) |
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Two Finishes |
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A |
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Start |
Split |
Stop |
Split release |
Clear |
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First runner |
Second runner |
Display time of |
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finishes. |
finishes. |
second runner. |
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Display time of |
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first runner. |
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E-25
Countdown Timer
Timekeeping Mode time Hours
Seconds
Minutes
You can set the countdown timer within a range of one minute to 24 hours. An alarm sounds when the countdown reaches zero.
xYou can also select auto-repeat, which automatically restarts the countdown from the original value you set whenever zero is reached.
xAll of the operations in this section are performed in the Countdown Timer Mode, which you can enter using C (page E-9).
E-26
To use the countdown timer
Press D while in the Countdown Timer Mode to start the countdown timer.
x When the end of the countdown is reached and auto-repeat is turned off, the alarm sounds for 10 seconds or until you stop it by pressing any button. The countdown time is automatically reset to its starting value after the alarm stops.
x When auto-repeat is turned on, the countdown will restart automatically without pausing when it reaches zero. The alarm sounds in order to signal when the countdown reaches zero.
x The countdown timer measurement operation continues even if you exit the Countdown Timer Mode.
x Press D while a countdown operation is in progress to pause it. Press D again to resume the countdown.
x To completely stop a countdown operation, first pause it (by pressing D), and then press A. This returns the countdown time to its starting value.
E-27
To set up the countdown timer
1. While the countdown start time is on the display in the Countdown Timer Mode, hold down A until the hour
setting of the countdown start time starts to flash,
which indicates the setting screen.
x 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.
C C C
Hours |
Minutes |
Auto-repeat |
3. While a setting is flashing, use D and B to change it as described below.
Screen |
To do this: |
Do this: |
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Change the hours or minutes |
Use D (+) and B (–). |
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Toggle auto-repeat on (On) and off (OF) |
Press D. |
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x To specify a countdown start time of 24 hours, set 0:00.
4.Press A to exit the setting screen.
x The auto-repeat on indicator (
) is displayed on the Countdown Timer Mode screen while this function is turned on.
x Frequent use of auto-repeat and the alarm can run down battery power.
E-28 |
E-29 |
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