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Operation Guide 3249
4. 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. (AM indicator) or p.m. (PM indicator).
5. 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 an alarm on and off
1. In the Alarm Mode, use D to select an alarm.
Alarm on indicator
2. Press A to toggle it on (the alarm on indicator
displayed) and off (the alarm on indicator not
displayed).
• Turning on a daily alarm (
alarm on indicator on its Alarm Mode screen.
• In all modes, the alarm on indicator is shown for any
alarm that is currently turned on.
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use D to select the Hourly Time
Signal (
SIG
Hourly time signal
on indicator
2. Press A to toggle it on (the hourly time signal on
indicator displayed) and off (the hourly time signal on
indicator not displayed).
• The Hourly Time Signal on indicator is shown on the
display in all modes while the Hourly Time Signal is
turned on.
Stopwatch
The stopwatch lets you measure elapsed time, split times,
1/100 second
and two finishes.
• The display range of the stopwatch is 23 hours,
Mode indicator
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.
Hours
Seconds
• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C.
Minutes
Elapsed time measurement
Start
Stop
Re-start
Split time measurement
Start
Split
Split release
(SPL displayed)
Split time and 1st-2nd place times
Split
Stop
Start
First runner
Second runner
finishes.
finishes.
Display time of
first runner.
Countdown Timer
The countdown timer can be set within a range of
Mode indicator
one minute to 24 hours. An alarm sounds when the
countdown reaches zero.
• The countdown operation continues even if you exit the
Countdown Timer Mode.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C.
To use the countdown timer
Hours
Seconds
Press D while in the Countdown Timer Mode to start the
Minutes
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 reset to its starting
value automatically after the alarm stops.
• 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.
To set the countdown start time
1. In the Countdown Timer Mode, hold down A until the
hours of the countdown start time start to flash, which
indicates the setting screen.
2. Press C to move the flashing between the hours and
minutes.
3. While a setting is flashing, use D (+) or B (–) to
change it.
• To set the starting value of the countdown time to
24 hours, set
4. Press A to exit the setting screen.
x1
through
x5
) displays the
).
Stop
Clear
Stop
Clear
Split release
Clear
Display time of
second runner.
0:00
.
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.
Button Operation Tone
The button operation tone sounds any time you press one
Mute indicator
of the watch's buttons. You can turn the button operation
tone on or off as desired.
• Even if you turn off the button operation tone, the alarm,
Hourly Time Signal, and Countdown Timer Mode alarm
all operate normally.
To turn the button operation tone on and off
In any mode (except when a setting screen is on the
display), hold down C for about three seconds to toggle
the button operation tone on (mute indicator not
displayed) and off (mute indicator displayed).
• Holding down C to turn the button operation tone on or off also causes the watch's
current mode to change.
• The mute indicator is displayed in all modes when the button operation tone is
turned off.
Scrolling
The B and D buttons are used in various modes and setting screens to scroll
through data on the display. In most cases, holding down these buttons during a scroll
operation scrolls at high speed.
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing when you
last exited the mode appears first.
World Time
• The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
• The current time in all World Time Mode cities is calculated in accordance with the
Greenwich Mean Time (GMT) differential for each city, based on the current Home
City time setting in the Timekeeping Mode.
• The GMT differential is the time difference of the time zone where the city is located
from Greenwich Mean Time.
• GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC) data.
Specifications
Accuracy at normal temperature: ±30 seconds a month
Timekeeping: Hour, minutes, seconds, a.m./p.m., day, day of the week, month, year
Time system: Switchable between 12-hour and 24-hour formats
Calendar system: Full auto-calendar pre-programmed from the year 2000 to 2099
Standard time/Daylight saving time
Other: Home City code (can be assigned one of 30 city codes); Daylight Saving
Time (summer time)/Standard Time
World Time: 30 cities (29 time zones)
Other: Daylight Saving Time/Standard Time
Alarm: 5 Daily Alarms, Hourly Time Signal
Stopwatch
Measuring unit: 1/100 of a second
Measuring capacity: 23 hours, 59 minutes, 59.99 seconds
Functions: Elapsed time, split time and two finishes
Countdown Timer
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Other: Two LEDs (light-emitting diodes), Button operation tone on/off
Battery: One lithium battery (Type: CR1616)
Battery life
3 years under the following conditions
• 2 seconds of illumination operation per day
• 10 seconds of alarm operation per day
2
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