Operation Guide 3772
3
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two finishes.
•
The display range of the stopwatch is 59 minutes, 59.99
seconds.
•
The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
•
Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
elapsed time measurement.
•
The stopwatch measurement operation continues even
if you exit the Stopwatch Mode.
•
All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing
C
.
1/100 second
Minutes
Seconds
D
Start
Stop
Elapsed Time
➤
Re-start
Clear
D
➤
Stop
D
➤
D
➤
A
Split Time
D
Start
Split
➤
Split release
Clear
A
➤
Stop
A
➤
D
➤
A
Two Finishes
D
Start
Split
➤
Stop
Clear
A
➤
Split release
D
➤
A
➤
A
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
To measure times with the stopwatch
Countdown Timer
You can set the countdown timer within a range of one to
60 minutes. An alarm sounds when the countdown
reaches zero.
•
Calibration signal reception (both auto and manual) is
disabled while a countdown timer operation is in
progress.
•
All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C
.
Minutes
Seconds
To set the countdown start time
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” to display it.
2. While a setting is flashing, use
D
(+) and
B
(–) to change it.
3. Press
A
to exit the setting screen.
To use the countdown timer
Press
D
while in the Countdown Timer Mode to start the countdown timer.
•
When the end of the countdown is reached, 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.
•
Press
D
while a countdown operation is in progress to pause it. Press
D
again to
resume the countdown.
•
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.
Alarm
When the alarm is turned on, the alarm sounds when the
alarm time is reached. You can also turn on an Hourly
Time Signal, which will cause the watch to beep twice
every hour on the hour.
•
All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing
C
.
Alarm time
(Hour : Minutes)
PM indicator
Hourly time signal
on indicator
Alarm on indicator
To set the alarm time
1. In the Alarm Mode, hold down
A
until the hour setting of the alarm time starts to
flash, which indicates the setting screen.
•
This operation automatically turns on the alarm.
2. Press
C
to move the flashing between the hour and minute settings.
3. While a setting is flashing, use
D
(+) and
B
(–) to change it.
•
When setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m. (no indicator) or p.m. (P indicator).
4. Press
A
to exit the setting screen.
Alarm Operation
The alarm sounds at the preset time for about 10 seconds, regardless of the mode the
watch is in.
•
To stop the alarm tone after it starts to sound, press any button.
To test the alarm
In the Alarm Mode, hold down
D
to sound the alarm.
To turn the Daily alarm and the Hourly Time Signal on and off
In the Alarm Mode, press
D
to cycle through the settings shown below.
•
The alarm on indicator and the Hourly Time Signal on indicator are shown on the
display in all modes while these functions are turned on.
Alarm Off
Signal Off
Alarm On
Signal Off
Alarm Off
Signal On
Alarm On
Signal On
Alarm On Indicator / Hourly Time Signal On Indicator
Illumination
An LED (light-emitting diode) and light guide panel
illuminate the digital display for easy reading in the dark.
•
See “Illumination Precautions” for other important
information.
To turn on illumination
In any mode, press
B
to illuminate the display.
•
You can specify 1.5 seconds or 2.5 seconds as the
illumination duration. See “To set the current digital time
and date manually” for more information.
Timekeeping
Use the Timekeeping Mode to set and view the current time and date. This section
also explains how to manually set the current date and time.
•
When setting the time, you can also configure settings for the illumination duration
and the 12/24-hour format.
•
All of the operations in this section are performed in the Timekeeping Mode, which
you can enter by pressing
C
.
▲
Press
A
.
Hour : Minutes
PM indicator
▲
Press
D
.
Last Signal
Screen
Reception date
A
Reception time
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Setting the Digital Time and Date Manually
Make sure you select your Home City code before you change the current time and
date settings. World Time Mode times are all displayed in accordance with the
Timekeeping Mode settings. Because of this, World Time Mode times will not be
correct if you do not select the proper Home City code before setting the time and
date in the Timekeeping Mode.
To set the current digital time and date manually
1. In the Timekeeping Mode, hold down
A
until the city
code starts to flash, which indicates the setting screen.
2. Press
C
to move the flashing in the sequence shown
below to select other settings.
City code
3. When the setting you want to change is flashing, use
B
and/or
D
to change it as
described below.
Seconds
Hour
12/24-Hour
Format
Minutes
Year
DST
Day
Month
City Code
Screen:
To do this:
Change the city code
Cycle between Daylight Saving Time
(
ON
), Standard Time (
OFF
), and
Auto DST (
A
t
)
Toggle between 12-hour (
12H
) and
24-hour (
2
4
H
) timekeeping
Do this:
Use
D
(east) and
B
(west).
Press
D
.
Press
D
.
Reset the seconds to
00
Toggle the illumination duration
setting between 1.5 seconds ( ) and
2.5 seconds ( )
Change the hour or minutes
Change the year
Change the month or day
Press
D
.
Press
B
.
Use
D
(+) and
B
(–).
•
See “City Code Table” for a complete list of available city codes.
•
For information about settings other than the time and date, see the following.
Illumination duration: Illumination