Operation Guide 5055

Stopwatch

Signal Reception Troubleshooting

Check the following points whenever you experience problems with signal reception.

Problem

Probable Cause

What you should do

I can’t

• You performed some button operation

• Perform manual signal

receive a

during the auto receive operation.

receive at night or wait until

time

• The watch is not in the Timekeeping

the next auto signal receive

calibration

Mode or World Time Mode.

operation is performed.

signal.

• The watch is in a location where the

• Enter the Timekeeping

 

signal cannot be received for some

Mode or World Time Mode

 

reason.

and try again.

 

• A countdown timer operation is in

• Enter the Countdown Timer

 

progress.

Mode and stop the

 

• Radio interference is often present

countdown.

 

during the day time, which can

• Check to make sure the

Stopwatch hand

Hours

Minutes 1/100 second Seconds

The stopwatch lets you measure elapsed time, split times, and two finishes.

•The digital 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 hand will function as a 1/20-hand during the first second of an elapsed time operation. After that, it will function as a second hand until the first minute elapses. After that it will function as a minute hand. Whenever an elapsed time operation is stopped, the stopwatch hand will indicate the current seconds count.

•The stopwatch measurement operation continues even if you exit the Stopwatch Mode.

 

interfere with calibration signal

 

watch is in a location where

 

reception.

 

it can receive the signal.

Time setting • If the time is one hour off, the DST

 

• Change the DST setting to

is incorrect

setting may be incorrect.

 

Auto DST.

following

• The Home City code setting is not

 

• Select the correct Home

signal

correct for the area where you are

 

City code.

reception.

using the watch.

 

• Enter the home position

 

• The home position of the hands is off.

 

adjustment mode and adjust

 

 

 

the home position.

•For further information, see “Important!” under “Time Calibration Signal Reception” and “Radio-controlled Atomic Timekeeping Precautions”.

World Time

•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.

To measure times with the stopwatch

 

 

Elapsed Time

 

 

 

 

 

D

➤ D

➤ D

➤ D

➤ A

Start

Stop

Re-start

Stop

Clear

Split Time

 

 

 

 

 

D

➤ A

➤ A

➤ D

➤ A

Start

Split

Split release

Stop

Clear

 

(

 

displayed)

 

 

City code

World Time shows the current time in 48 cities (29 time zones) around the world. A simple operation swaps your Home City with the currently selected World Time city.

• The times kept in the World Time Mode are

synchronized with the time being kept in the

Timekeeping Mode. If you feel that there is an error in

any World Time Mode time, check to make sure you

have the correct city selected as your Home City. Also

check to make sure that the current time as shown in

the Timekeeping Mode is correct.

• Select a city code in the World Time Mode to display the

current time in any particular time zone around the

Two Finishes

 

 

 

 

D

➤ A

➤ D

➤ A

➤ A

Start

Split

Stop

Split release

Clear

 

First runner

Second runner

Display time of

 

 

finishes.

finishes.

second runner.

 

 

Display time of

 

 

 

 

first runner.

 

 

 

Countdown Timer

Current time in selected city

globe. See the “City Code Table” for information about

the UTC offset settings that are supported.

Start time (minutes)

You can set the countdown timer within a range of one minute to 60 minutes. An alarm sounds when the

•All of the operations in this section are performed in the World Time Mode, which you enter by pressing C.

To view the current time in another time zone

In the World Time Mode, use Dto scroll through available city codes (time zone). Holding down the button scrolls at high speed.

•When the city code (time zone) you want is selected, you can press Ato display the date. After about one second, the watch will resume regular timekeeping.

Press A.

▲

Minutes

Seconds

countdown reaches zero.

•You also can select auto-repeat, which automatically restarts the countdown from the original value you set whenever zero is reached.

•All of the operations in this section are performed in the

Countdown Timer Mode, which you enter by pressing

C.

 

One second

Hour : Minutes Seconds

Date

To toggle a city code time between Standard Time and Daylight Saving Time

1.In the World Time Mode, press Dto display the city code (time zone) whose Standard Time/Daylight Saving Time setting you want to change.

2.Hold down Afor about three seconds to toggle between Daylight Saving Time (DST indicator

displayed) and Standard Time (DST indicator not displayed).

•The DST indicator is shown on the World Time Mode screen while Daylight Saving Time is turned on.

DST indicator

Swapping your Home City and World Time City

You can use the procedure below to swap your Home City and World Time city. This changes your Home City to your World Time city, and your World Time city to your Home City. This capability can come in handy when you frequently travel between two cities in different time zones.

•If your current World Time city supports receipt of a time calibration signal, making it your Home City enables calibration signal reception.

•For information about which cities support time calibration signal reception, see “To specify your Home City”.

To swap your Home City and World Time city

1.In the World Time Mode, use Dto select the World Time city you want.

2.Hold down Aand Buntil the watch beeps.

•This will make the World Time city (which you selected in step 1), your Home City. At the same time, it changes the Home City you had selected prior to step 2 your World Time city.

•After swapping the Home City and World Time city, the watch stays in the World Time Mode with the city that was selected as the Home City prior to step 2 now displayed as the World Time city.

To use the countdown timer

Press Dwhile 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.

•When auto-repeat is turned on, the countdown will restart automatically without pausing when it reaches zero. The alarm sounds to signal when the countdown reaches zero. The countdown is repeated up to eight times, and then stop.

•The number of the current repeat (1 to 8) is shown in the lower display.

•The countdown timer measurement operation continues even if you exit the Countdown Timer Mode.

•To stop a countdown timer operation completely, first pause it (by pressing D), and then press A. This returns the countdown time to its starting value.

To configure countdown start time and auto-repeat settings

 

 

 

1. While the countdown start time is on the display in the

 

 

 

Countdown Timer Mode, hold down A for about three

 

 

 

seconds until the minute setting of the countdown start

 

 

 

time starts to flash, which indicates the setting screen.

 

 

 

• If the countdown start time is not displayed, use the

l

lll

procedure under “To use the countdown timer” to

 

l

display it.

 

 

l

l

 

 

l

 

l

 

 

 

ll

2. Press Cto move the flashing in the sequence shown

 

 

 

below, and select the setting you want to change.

Start time (minutes)

Start Time

C

Auto-Repeat

 

 

 

(Minutes)

 

On/Off

3.Perform the following operations, depending on which setting is currently selected on the display.

•While the start time setting is flashing, use D(+) and B(–) to change it.

•While the auto-repeat on/off setting (0N or 0FF) is flashing on the display, press D to toggle auto-repeat on (0N) and off (0FF).

4.Press Ato exit the setting screen.

• The auto-repeat on indicator () is displayed on the Countdown Timer Mode screen while this function is turned on.

•Frequent use of auto-repeat and the alarm can run down battery power.

3