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Operation Guide 3731

8

You can use the following procedure to set the current time and
date of the Timekeeping Mode Home Time Zone.

Always use the Timekeeping Mode to set and adjust current time
and date settings.

If you are planning to manually change both the digital and
analog settings, be sure to adjust the digital setting first.

To configure Home Time Zone settings

1.

In the Timekeeping Mode,
hold down the 

A

A

A

A

A

 button

for about two seconds
until the Home Time Zone
setting starts to flash on
the display.

This is the setting screen.

The second hand moves to
12 o’clock at this time.

2.

Use the 

D

D

D

D

D

 (Westward)

and 

B

B

B

B

B

 (Eastward) buttons

to scroll through the time
zones until the one whose
time you want to set is
displayed.

See the “Time Zone List”
for more information about
time zones.

Holding down either button
scrolls the setting at high
speed.

3.

Press the 

C

C

C

C

C

 button so the

summer time setting is
displayed.

Home Time Zone

+9.0 = Tokyo

(Westward)

(Eastward)

4.

Press the 

D

D

D

D

D

 button to

cycle through the summer
time settings until the one
you want is displayed.

DS A

This setting enables the auto summer time setting, which
turns summer time on or off in accordance with the received
time calibration signal.

DS OFF

This setting turns off summer time, and displays the current
time normally.

DS On

This setting turns on summer time.

Selecting this setting displays the DST indicator, and
advances the current time setting by one hour.

Note that pressing the 

D

 button in the above step while any time

zone other than +8.0, +9.0, –5.0, –6.0, –7.0, –8.0, or –10.0 will
simply toggle the summer time setting between DS OFF and DS
On
.

5.

Use the 

C

C

C

C

C

 button to cycle

through the time and date
settings shown below.
Each press of the 

C

C

C

C

C

button causes the
applicable setting to flash.

Seconds

Time Zone

12/24-hour

Summer Time

Power Saving

Day

Month

Year

Minute

Hour

6.

Use the 

D

D

D

D

D

 and 

B

B

B

B

B

 buttons to change the currently

selected setting.

Configuring Home Time Zone Settings

7.

While the 12/24-hour
setting is selected, press
the 

D

D

D

D

D

 button to toggle the

timekeeping format
between 12-hour (“12H”
indicator) and 24-hour
(“24H” indicator).

8.

While the seconds are
selected, press the 

D

D

D

D

D

button to reset them to 00
in accordance with the
time signal on the radio,
TV, etc.

Pressing the 

D

 button while

the seconds count is in the
range of 30 to 59 resets it to
00 and also adds 1 to the
minutes. Pressing the 

D

button in the range of 00 to 29
resets the seconds count
without changing the minutes.

9.

While the hour, minutes,
year, month, or day setting
is flashing, use the 

D

D

D

D

D

 (+)

button and 

B

B

B

B

B

 (–) button

to change the setting.

Holding down either button
scrolls the setting at high
speed.

When setting the hour, make
sure you specify AM (no
indicator) or PM (P) correctly
when using 12-hour
timekeeping, or that you
specify the correct 24-hour
time.

You can set a year in the range of 00 (2000) to 99 (2099). The
day of the week is set automatically in accordance with the
date you set.

The watch automatically makes adjustments for leap years
and month lengths.

10.

While the Power Saving
setting is selected, press
the 

D

D

D

D

D

 button to toggle it

ON and OFF.

12/24 Timekeeping Indicator

Resets to 00. 

(Back)

(Forward)

Hour Minutes

on = Power Saving On
OFF = Power Saving Off 

11.

When the setting is the way you want, press the 

A

A

A

A

A

button.

This exits the setting screen.

The display also will exit the setting screen automatically if
you do not perform any operation for about two or three
minutes.

Digital-Analog Synchronization
The watch automatically adjusts its analog setting to match the
current digital time setting.

When adjusting the analog time, the hands may move clockwise
or counterclockwise.

Depending on how many hours different the digital and analog
time settings are, it may take some time for the analog hand
setting procedure to be finished.

After adjustment of the hour and minute hand, the second hand
will adjust automatically to the digital time.

Adjusting the Analog Hand
Positions

You can use the Hand Setting Mode to manually adjust the analog
hand positions then they do not match the digital time.

1.

Use the 

C

C

C

C

C

 button to enter the Hand Setting Mode.

2.

Hold down the 

A

A

A

A

A

 button

for about two seconds
until the second hand
stops at the 12 o’clock
position and “– 00–”
flashes on the digital
display.

3.

If the second hand does
not align with the 12
o’clock position by itself,
use the 

D

D

D

D

D

 button to

adjust it.

Each press of the 

D

 button

advances the second hand by
one second.

Holding down the 

D

 button

advances the second hand at
high speed.

(Forward)

12 o’clock

Summary of Contents for 3731

Page 1: ...Hands move to 12 o clock Moves to current level Returns to current seconds position Time in Current Time Zone Time Zone TIME DIFFERENCE Alarm Number Alarm Time How the sleep state works Display sleep state The display sleep state is triggered whenever the watch is left in the dark for three or four days The display goes blank in the display sleep state Alarms and the hourly time signal continue to...

Page 2: ...the face of the watch Pressing the D button illuminates the face regardless of whether the auto light switch is on or off You can use the procedure under To specify the illumination duration to configure the illumination duration as approximately 1 5 seconds or 2 seconds You may hear a faint rattling sound when you move the watch around This sound is caused by the movement of a metal bulb that con...

Page 3: ...onfigured to select the strongest Japanese signal 40kHz Mt Otakadoya signal or 60kHz Mt Hagane signal and use that one for calibration is stronger 1000km Mt Hagane 60kHz Mt Otakadoya 40kHz 500km 1000km 500km Japan Transmitter Locations Under optimum conditions the calibration signal should be receivable up to 1 000 kilometers from the transmitter Note that the wave is relatively weak at distances ...

Page 4: ...s will cause the watch to beep and then exit the receive operation Make sure you are within the range of the calibration signal transmitter before performing the reception operation Remember that geographic contours nearby buildings seasonal conditions the time of day can even make reception impossible even when you are within range of the transmitter Proper reception may be impossible if there is...

Page 5: ...ute setting flashes Hour Forward Back Minute 5 Use the D D D D D and B B B B B buttons to change the minute setting Holding down either button scrolls the setting at high speed 6 When the setting is the way you want press the A A A A A button This exits the setting screen An alarm is turned on automatically whenever you change its settings The display also will exit the setting screen automaticall...

Page 6: ...ime Though the digital time freezes the stopwatch hands continue to move This stops the elapsed time operation Pressing the A button while timing is stopped resets the stopwatch Resetting the stopwatch stores the final elapsed time that is on the display to lap split time memory Start Lap Number Lap Lap Time Reset Stop Start Split Split Time Reset Stop Lap Time Display Split Time Display Elapsed T...

Page 7: ...ing the A button in the Dual Time Mode displays the time differential of the currently selected time zone for about one second Time Zone Time in selected time zone Forward Using Summer Time DST Summer time or Daylight Saving Time DST as it is called in some countries calls for setting clocks ahead one hour during the summer season Note that the use of summer time depends on the country and even th...

Page 8: ... D D D D D button to reset them to 00 in accordance with the time signal on the radio TV etc Pressing the D button while the seconds count is in the range of 30 to 59 resets it to 00 and also adds 1 to the minutes Pressing the D button in the range of 00 to 29 resets the seconds count without changing the minutes 9 While the hour minutes year month or day setting is flashing use the D D D D D butt...

Page 9: ...il it completes a 12 hour cycle or until you press any button to stop it 6 Press the A A A A A button to select the stopwatch 1 20 second hand for adjustment 24 hour hand Minute Hand Hour Hand Forward Back 7 If the 1 20 second hand is not aligned with the 12 o clock position use the D D D D D button to adjust it Each press of the D button advances the 1 20 second hand by one step Holding down the ...

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