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Operation Guide 2902/2952
2
Countdown Timer
The countdown timer can be set within a range of one
second to 24 hours. An alarm sounds when the
countdown reaches zero.
• You can also select auto-repeat, which automatically
restarts the countdown from the original value you set
whenever zero is reached.
• If you have Flash Alert turned on, display illumination
will also flash while the countdown alarm is sounding.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing C.
Mode indicator
Timekeeping Mode time
(Hour : Minutes)
Hours
Minutes
Seconds
To use the countdown timer
Press B while in the Countdown Timer Mode to start the countdown timer.
• 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.
• The countdown alarm will sound for only one second when the countdown start time
is 10 seconds or less.
• The countdown timer measurement operation continues even if you exit the
Countdown Timer Mode.
• Press B while a countdown operation is in progress to pause it. Press B again to
resume the countdown.
• To completely stop a countdown operation, first pause it (by pressing B), and then
press A. This returns the countdown time to its starting value.
To set the countdown start time
1.In the Countdown Timer Mode, press A. This causes
the countdown start time hour digits to flash on the
display, which indicates the setting screen.
2.Press C to move the flashing in the sequence shown
below to select other settings.
SecondsHour Minutes
3.While a setting is flashing, press B to increase it.
• To set the starting value of the countdown time to 24
hours, set
0:00
.
4.Press A to exit the setting screen.
To turn auto-repeat on and off
1.In the Countdown Timer Mode, press A. This causes
the countdown start time hour digits to flash on the
display, which indicates the setting screen.
2.Press L to toggle auto-repeat on (auto-repeat indicator
displayed) and off (auto-repeat indicator not displayed).
3.Press A to exit the setting screen.
• When the end of the countdown is reached while auto-
repeat is on, the alarm sounds, but the countdown
restarts from the beginning without stopping. You can
stop the countdown by pressing B and manually reset
to the start time by pressing A.
• The auto-repeat indicator appears in the Countdown
Timer Mode only.
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 seconds.
• After the elapsed time reaches one hour, the display changes to show the hours,
minutes, and seconds in 1-second units.
• 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.
1/100 second
Mode indicator Timekeeping Mode time
(Hour : Minutes)
Minutes
Seconds
Times greater
than one hour
Minutes Seconds
Hours
To measure times with the stopwatch
( displayed)
Elapsed time
Start Stop Re-start Stop Clear
Start
Split Split release Stop Clear
Start
Split Stop Split release Clear
Split time
Two Finishes
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
Auto-repeat indicator
Illumination
An LED (light-emitting diode) and light guide panel illuminate the entire display for
easy reading in the dark.
• See “Illumination Precautions” for other important information.
To illuminate the display
In any mode, press L to illuminate the display for about
two seconds.
Flash Alert
When Flash Alert is turned on, the display illumination
flashes while a multi-function alarm, Hourly Time Signal,
or countdown alarm is sounding.
To toggle Flash Alert on and off
In the Timekeeping Mode, hold down B for about two
seconds to toggle Flash Alert on (
displayed) and off
(
not displayed).
Flash alert indicator
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.
Auto return features
If you leave a screen with flashing digits for two or three minutes without performing
any operation, the watch automatically saves any settings you have made up to that
point and exits the setting screen.
Scrolling
The B button is used to scroll through setting screen data on the display. Holding
down this button during a scroll operation scrolls through the data at high speed.
Illumination Precautions
• Illumination may be hard to see when viewed under direct sunlight.
• Frequent use of illumination runs down the battery.