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Operation Guide 3171

MA090

5

-EA

About This Manual

Depending on the model of your watch, display text appears either as dark figures
on a light background or light figures on a dark background. All sample displays in
this manual are shown using dark figures on a light background.

Button operations are indicated using the letters shown in the illustration.

(Light)

(Light)

Timekeeping Mode

Alarm Mode

Stopwatch Mode

Dual Time Mode

Press .

Each section of this manual provides you with the information you need to perform
operations in each mode. Further details and technical information can be found in
the “Reference” section.

General Guide

Press 

C

 to change from mode to mode.

In any mode, press 

L

 to illuminate the display.

3. When the setting you want to change is flashing, press 

B

 to change it as

described below.

Pressing 

B

 while the seconds are in the range of 30 to 59 resets them to 

00

 and

adds 1 to the minutes. In the range of 00 to 29, the minutes are unchanged.

4. Press 

A

 to exit the setting screen.

The year can be set in the range of 2000 to 2099.

The watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to change
it except after you have the watch’s battery replaced.

To toggle between 12-hour and 24-hour timekeeping

In the Timekeeping Mode, press 

B

 to toggle between 12-hour timekeeping and

24-hour timekeeping.

With the 12-hour format, the 

 (PM) indicator appears to the left of the hour digits

for times in the range of noon to 11:59 p.m. and no indicator appears to the left of
the hour digits for times in the range of midnight to 11:59 a.m.

With the 24-hour format, times are displayed in the range of 0:00 to 23:59, with 
indicator.

The 

 and 

 indicators are not displayed with the Timekeeping Mode time on the

Alarm Mode and Dual Time Mode screens.

The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.

To change this setting

Seconds

Hour, Minutes, Year, Month,
Day, Day of week

Perform this button operation

Press 

B

 to reset to 

00

.

Press 

B

 to increase the setting.

Holding down 

B

 changes the setting at high speed.

Timekeeping

Use the Timekeeping Mode to set and view the current
time and date.

To set the time and date

1. In the Timekeeping Mode, hold down 

A

 until the

seconds start to flash, which indicates the setting
screen.

2. Press 

C

 to move the flashing in the sequence shown

below to select other settings.

Seconds

Hour

Minutes

Year

Month

Day of the week

Day

PM indicator 

Month – Day 

Hour : Minutes 

Day of week 

Seconds 

Alarm time 
(Hour : Minutes) 

Timekeeping Mode time 
(Hour : Minutes) 

Mode indicator 

Alarm

When the daily 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.

All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing 

C

.

Alarm Operation

The alarm tone sounds at the preset time for 10 seconds,
regardless of the mode the watch is in.

Hourly time signal 
on indicator 

Alarm on indicator 

To set an alarm time

1. In the Alarm Mode, hold down 

A

 until the hour setting

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

minutes.

3. While a setting is flashing, use 

B

 to increase it.

Holding down 

B

 changes the setting at high speed.

With the 12-hour format, set the time correctly as a.m.
(no indicator) or p.m. (

 indicator).

4. Press 

A

 to exit the setting screen.

To stop the alarm tone after it starts to sound

Press any button.

To turn the Daily Alarm and Hourly Time Signal on and off

In the Alarm Mode, press 

B

 to cycle through the on and

off settings as shown below.

Alarm On Indicator/Hourly Time Signal On Indicator

Daily alarm 
only

Both off

Both on

Hourly Time 
Signal only

The alarm on (

) indicator flashes while the alarm is

sounding.

The alarm on (

) indicator and Hourly Time Signal on

(

) indicator are displayed in all modes.

To test the alarm

In the Alarm Mode, hold down 

B

 to sound the alarm.

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