Casio 3474, 3473 User Manual
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.
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.
Warning!
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
E-2
Hourly time
signal on
indicator
Module 3473 Module 3474
Alarm on indicator
Hourly time
signal on
indicator
Contents
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
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
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”.
Stopwatch ......................................................................................................... E-24
To measure times with the stopwatch .......................................................... E-25
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
E-3
E-5
General Guide
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
E-8
C C
E-7E-6
Countdown Timer Mode Alarm Mode
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
3. When the setting you want to change is flashing, use B and D to change it as
described below.
Screen To do this: Do this:
Reset the seconds to 00
Toggle between Daylight Saving Time (On) and
Standard Time (OF)
Change the hour or minutes
Change the year
Change the month or day
E-12
To toggle the Timekeeping Mode time between DST and Standard Time
DST indicator
On/Off status
E-14
Use the Timekeeping Mode to set and view the current
time and date.
x The Moon phase indicator (page E-42) shows the
current Moon phase in accordance with the current
date as kept in the Timekeeping Mode.
x The 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.
Press D.
Press D.
Use D (+) and B (–).
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.
To set the time and date
Seconds
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.
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.
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C to move the flashing in the sequence shown
below to select the other settings.
CC
Day YearMonth
CC
C
MinutesHourDST
CC
E-11
E-13
E-15
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)
E-16
4. When the setting you want to change is flashing, use D and B to change it as
described below.
Setting Screen Button Operations
UTC Differential
Longitude Value
East Longitude/
West Longitude
Lunitidal Interval Hours,
Minutes
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.
Use D (+) and B (–) to change the setting.
x You can specify a value in the range of –12.0 to
+14.0, in 0.5-hour units.
Use D (+) and B (–) to change the setting.
x You can specify a value in the range of 0° to 180°,
in 1-degree units.
Use D to switch between east longitude (E) and
west longitude (W).
Use D (+) and B (–) to change the setting.
5. Press A to exit the setting screen.
E-18
To configure Home Site data
UTC differential
UTC Differential
C
Lunitidal Interval Minutes Lunitidal Interval Hours
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.
x The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
x The A and P indicators are not displayed with the Timekeeping Mode time on the
Countdown Timer Mode and Dual Time Mode screens.
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.
C
Longitude Value
C
East Longitude/
West Longitude
C
C
E-17
E-19
Operation Guide 3473/3474
Moon/Tide Data
Tide Data Screen
Month – Day
Year
Tide graph
Moon phase indicator
E-20
Year
Month – Day
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
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
Time
for some reason, check the current Timekeeping Mode
settings (time, date, and Home Site), and correct them
if required.
x See “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.
x All of the operations in this section are performed in the
Moon/Tide Data Mode, which you enter by pressing C
(page E-8).
Tide Data Screen Moon Data Screen
A
Tide graph
Time
Moon age
Moon phase indicator
Year
Month – Day
Stopwatch
1/100 second
Hours
Minutes
E-24
The stopwatch lets you measure elapsed time, split
times, and two finishes.
x The display range of the stopwatch is 23 hours,
59minutes, 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.
Seconds
x All of the operations in this section are performed in
the Stopwatch Mode, which you enter by pressing C
(page E-8).
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
To specify a date
Month – Day
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.
1. In the Moon/Tide Data Mode, hold down A until the
year setting starts to flash, which indicates the setting
screen.
2. Press C to move the flashing in the sequence shown
below to select the other settings.
CCC
Year DayMonth
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
To measure times with the stopwatch
Elapsed Time
D D D D A
Start Stop Resume Stop Clear
Split Time
D
Start Split
A A D A
(SPL displayed)
Split release Stop Clear
Two Finishes
D
Start Split
A D A A
First runner
finishes.
Display time of
first runner.
Stop
Second runner
finishes.
Split release
Display time of
second runner.
Clear
E-25
Countdown Timer
Timekeeping Mode time
Hours
Minutes
E-26
To set up the countdown timer
E-28
You can set the countdown timer within a range of
one minute to 24 hours. An alarm sounds when the
countdown reaches zero.
x You can also select auto-repeat, which automatically
restarts the countdown from the original value you set
whenever zero is reached.
x All of the operations in this section are performed in the
Countdown Timer Mode, which you can enter using C
(page E-9).
Seconds
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
2. Press C to move the flashing in the sequence shown
below to select other settings.
Hours Auto-repeat
procedure under “To use the countdown timer” to
display it.
CCC
Minutes
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.
3. While a setting is flashing, use D and B to change it as described below.
Screen To do this: Do this:
Change the hours or minutes
Toggle auto-repeat on (On) and off (OF)
Use D (+) and B (–).
Press D.
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-27
E-29
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