
MA0505-EA
Operation Guide 2963
About This Manual
• Button operations are indicated using the letters shown
(Light)
in the illustration.
• 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 B to change from mode to mode.
• In any mode, press L to illuminate the display.
Timekeeping Mode
Press .
Alarm Mode
Timekeeping
Day of week 
Month – Day 
PM indicator 
Hour : Minutes Seconds 
3. When the setting you want to change is flashing, press C to change it as 
described below.
To change this setting
Seconds 
Hour, Minutes, Year, Month,
Day, Day of week
• Pressing C 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 C to toggle between 12-hour timekeeping and 
24-hour timekeeping.
• With the 12-hour format, the P (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. The 24
indicator is on the display while 24-hour format is selected.
• The P and 24 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.
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 B to move the flashing in the sequence shown 
below to select other settings.
Seconds Hour
Perform this button operation
Press C to reset to 00. 
Press C to increase the setting.
Holding down C changes the setting at high speed.
Minutes
YearMonthDay of week Day
Alarm
Timekeeping Mode time 
(Hour : Minutes) 
Mode indicator
Alarm time 
(Hour : Minutes) 
To set an alarm time
To stop the alarm tone after it starts to sound
Press any button.
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 B.
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, 
regardless of the mode the watch is in.
1. In the Alarm Mode, hold down A until the hour setting 
starts to flash, which indicates the setting screen.
• This operation turns on the alarm automatically.
2. Press B to move the flashing between the hour and 
minutes.
3. While a setting is flashing, use C to increase it. 
Holding down C changes the setting at high speed.
• With the 12-hour format, set the time correctly as a.m.
(no indicator) or p.m. (P indicator).
4. Press A to exit the setting screen.
Stopwatch Mode
To turn the Daily Alarm and Hourly Time Signal on and off
Hourly time signal 
on indicator 
Alarm on indicator 
To test the alarm
In the Alarm Mode, hold down C to sound the alarm.
In the Alarm Mode, press C to cycle through the on and 
off settings as shown below.
Alarm On Indicator/Hourly Time Signal On Indicator
Both on Hourly Time 
• 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.
Both off
Dual Time Mode
Daily alarm 
only
Signal only
Stopwatch
1/100 second 
Mode indicator 
Hours Seconds 
Minutes 
To measure times with the stopwatch
Elapsed time
Start Stop Re-start Stop Clear
Split time
Start Split
Two Finishes
Start
The stopwatch lets you measure elapsed time, split times, 
and two finishes.
• The 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 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.
• All of the operations in this section are performed in the 
Stopwatch Mode, which you enter by pressing B.
(    displayed)
Split Stop Split release Clear
First runner 
finishes. 
Display time of 
first runner.
Split release Stop Clear
Second runner 
finishes.
Display time of 
second runner.
Dual Time
The Dual Time Mode lets you keep track of time in a different time zone.
• In the Dual Time Mode, the seconds count is synchronized with the seconds count 
of the Timekeeping Mode time.
Timekeeping Mode time 
(Hour : Minutes) 
Mode indicator 
Hour : Minutes Seconds 
To set Dual Time
1. Press B to enter the Dual Time Mode.
2. Hold down A until the hour setting starts to flash, 
which indicates the setting screen.
3. Press B to move the flashing between the hour and 
minutes settings.
4. Press C to increase the setting. Holding down C 
changes the setting at high speed.
5. Press A to exit the setting screen.
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Operation Guide 2963
Illumination
Three-second indicator 
To specify the illumination duration
In the Timekeeping Mode, hold down C for about two seconds to toggle the 
illumination duration between three seconds (3 SEC displayed) and 1.5 seconds 
(3 SEC not displayed).
• Pressing C also toggles between 12-hour and 24-hour timekeeping.
• When the three-second setting is selected, the three-second (3 SEC) indicator
remains on the display in all modes.
• To protect against running down the watch’s battery, the watch switches to the
1.5-second setting automatically about seven hours after the three-second setting is 
selected. To continue to use the three-second setting, perform the above procedure 
again.
An LED (light-emitting diode) and light guide panel 
illuminate the entire display for easy reading in the dark.
• See “Illumination Precautions” for other important 
information.
To illuminate the display
In any mode, press L to illuminate the display.
• You can specify 1.5 seconds or three seconds as the 
illumination duration. See “To specify the illumination 
duration” for more information.
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.
Auto return features
If you leave a screen with flashing digits for one or two minutes without performing 
any operation, the watch automatically saves any settings you have made up to that 
point and exits the setting screen.
Illumination Precautions
• Illumination may be hard to see when viewed under direct sunlight.
• Illumination automatically turns off whenever an alarm sounds.
• Frequent use of illumination runs down the battery.
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