Operation Guide 3347
Alarms
Stopwatch
Mode indicator
Alarm number
Alarm time (Hour : Minutes)
You can set five independent daily alarms. When an alarm is turned on, the alarm tone sounds when the alarm time is reached.
You can also turn on an Hourly Time Signal that causes the watch to beep twice every hour on the hour.
•The alarm number (A1 through A5) indicates an alarm screen. 00 is shown for the alarm number when the Hourly Time Signal screen is on the display.
•All of the operations in this section are performed in the Alarm Mode, which you enter by pressing C.
Mode indicator 1/100 second
Minutes Seconds
The stopwatch lets you measure elapsed time, split times, and two finishes.
•The display range of the stopwatch is 99 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.
To set an alarm time
Alarm on indicator
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1.In the Alarm Mode, use D to scroll through the alarm screens until the one whose time you want to set is displayed.
A1 
A2 
A3
00 
A5 
A4
2.Hold down A until the hour digits of the alarm time start to flash, which indicates the setting screen.
• This automatically turns on the alarm.
To measure times with the stopwatch
Elapsed Time
D | ➤D | ➤ D | ➤D | ➤B |
Start | Stop |
| Stop | Clear |
Split Time |
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D | ➤B | ➤B | ➤D | ➤B |
Start | Split | Split release | Stop | Clear |
Two Finishes |
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D | ➤B | ➤D | ➤B | ➤B |
3.Press C to move the flashing between the hour and minute settings.
4.While a setting is flashing, use D (+) and B
•When setting the alarm time using the 
indicator).
5.Press A to exit the setting screen.
Alarm Operation
The alarm sounds in all modes at the preset time for about 10 seconds, or until you
Start | Split | Stop | Split release | Clear |
| First runner | Second runner | Display time of |
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Illumination
stop it by pressing any button.
To test the alarm
In the Alarm Mode, hold down B to sound the alarm.
To turn an alarm and the Hourly Time Signal on and off
1.In the Alarm Mode, use D to select an alarm or the Hourly Time Signal.
2.When the alarm or the Hourly Time Signal you want to set is selected, press B to turn it on and off.
Indicates alarm is ON.
Indicates Hourly Time Signal is ON.
•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.
•If any alarm is on, the alarm on indicator is shown on the display in all modes.
Countdown Timer
Auto light switch indicator
An LED
•The auto light switch must be turned on (indicated by the auto light switch indicator) for it to operate.
•See “Illumination Precautions” for other important information.
To turn on illumination manually
In any mode, press L 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.
•The above operation turns on illumination regardless of the current auto light switch setting.
1/10 second
Mode indicator
Minutes Seconds
You can set the countdown timer within a range of one to 60 minutes. An alarm sounds when the countdown reaches zero.
•You can also select
•The left display window normally shows the 1/10 second count. When
•All of the operations in this section are performed in the Countdown Timer Mode, which you enter by pressing
C.
About the Auto Light Switch
Turning on the auto light switch causes the display illumination to turn on whenever you position your wrist as described below in any mode. Note that this watch features a “Full Auto Light,” so the auto light switch operates only when available light is below a certain level. It does not illuminate the display under bright light.
Moving the watch to a position that is parallel to the ground and then tilting it towards you more than 40 degrees causes illumination to turn on.
•Wear the watch on the outside of your wrist.
Parallel to | More than |
ground | 40° |
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.Press C to move the flashing in the sequence shown below to select other settings.
Auto-
Minutesrepeat
3.While a setting is flashing, use D (+) and B
• See “To turn
4.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 and
•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 B. This returns the countdown time to its starting value.
To turn auto-repeat on and off
1. While the countdown start time is on the display in the
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reaches zero. You can stop the countdown by pressing D, and manually reset to the countdown start time by pressing B.
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Warning!
•Always make sure you are in a safe place whenever you are reading the display of the watch using the auto light switch. Be especially careful when running or engaged in any other activity that can result in accident or injury. Also take care that sudden illumination by the auto light switch does not surprise or distract others around you.
•When you are wearing the watch, make sure that its auto light switch is turned off before riding on a bicycle, or operating a motorcycle or any other motor vehicle. Sudden and unintended operation of the auto light switch can create a distraction, which can result in a traffic accident and serious personal injury.
To turn the auto light switch on and off
In any mode, hold down L for about two seconds to toggle the auto light switch on (the auto light switch indicator displayed) and off (the auto light switch indicator not displayed).
•The auto light switch is automatically turned off whenever battery power is at Level 4. After battery power recovers to Level 2, you will have to perform the above procedure to turn the auto light switch back on again.
•The auto light switch indicator is on the display in all modes while the auto light switch is turned on.
Batteries
This watch is equipped with a solar cell and rechargeable batteries (secondary batteries) that are charged by the electrical power produced by the solar cell. The illustration shown below shows how you should position the watch for charging.
Example: Orient the watch so its face | Solar cell | |
is pointing at a light source. | ||
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• The illustration shows how to position |
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a watch with a resin band. |
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•Note that charging efficiency drops
when any part of the solar cell is blocked by clothing, etc.
•Normally, you should try to keep the watch outside of your sleeve as much
as possible. Charging is significantly reduced if the face is only partially covered.
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