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Operation Guide 3185
E-40
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 (page E-41).
• 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 (page E-13)
Displaying the
SNZ
setting screen (page E-39)
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
E-41
To turn an alarm on and off
1. In the Alarm Mode, use D to select an alarm.
2. Press A to toggle it on (
) and off (xx).
• Turning on an alarm (
AL1, AL2, AL3, AL4 or
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 (SNZ) flashes while the
snooze alarm is sounding and during the 5-minute
intervals between alarms.
Alarm on indicator
On/Off status
E-42
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use D to select the Hourly Time
Signal (
SIG).
2. Press A to toggle it on (
) and off (xx).
• The Hourly Time Signal on indicator is shown on the
display in all modes while this function is turned on.
Hourly time signal
on indicator
On/Off status
E-43
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two finishes.
• The display range of the stopwatch is 23 hours, 59
minutes, 59.99 seconds.
• The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
• The stopwatch measurement operation continues even
if you exit the Stopwatch Mode.
• Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
elapsed time measurement.
• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C (page
E-11).
1/100 second
Hours
Seconds
Minutes
E-44
To measure times with the stopwatch
Elapsed Time
Split Time
Two Finishes
D
Start
D
Start
D
Start
Stop Re-start Stop
D
D
D
Split
(SPL displayed)
Split release Stop
A
D
A
Split
First runner finishes.
Display time of first
runner.
Stop
Second runner
finishes.
Split release
Display time of
second runner.
D
A
A
A
A
A
➤➤➤
➤➤➤
➤➤➤
➤
➤
➤
Clear
Clear
Clear
E-45
Countdown Timer
You can set the countdown timer within a range of one
minute to 24 hours. An alarm sounds when the countdown
reaches zero.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C (page E-11).
Countdown End Beeper
The countdown end beeper lets you know when the
countdown reaches zero. The beeper stops after about 10
seconds or when you press any button.
Minutes
Seconds
Hours
E-46
To configure the countdown timer
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” (page
E-47) to display it.
2.Press C to move the flashing between the hour and
minute settings.
3.When a setting is flashing, use D (+) and B (–) to
change it.
• To specify a countdown start time of 24 hours, set
.
4.Press A to exit the setting screen.
E-47
To use the countdown timer
Press D while in the Countdown Timer Mode to start the
countdown timer.
• The countdown timer operation continues even if you
exit the Countdown Timer Mode.
• Press D while a countdown operation is in progress to
pause it. Press D again to resume the countdown.
• 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.
Current timer time
Timer start time
E-48
Illumination
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” (page E-70) for other
important information about using illumination.
To illuminate the display manually
In any mode, press B to turn on illumination.
• The above operation turns on illumination regardless of
the current auto light switch setting.
Auto light switch on
indicator
E-49
• You can use the procedure below to select either 1.5 seconds or 3 seconds as the
illumination duration when you press B.
• Regardless of the watch’s current illumination duration setting, the display remains
illuminated for about three seconds in the Diving Mode.
To specify the illumination duration
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 (
or ) appears.
3.Press D to toggle the setting between
(approximately 1.5 seconds) and (approximately
3 seconds).
4. Press A to exit the setting screen.