1
Operation Guide 2991
MA0604-EB
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.
• 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 (except when a setting screen is on the display), press B to illuminate
the display.
Timekeeping
Use the Timekeeping Mode to set and view the current
time and date.
Read This Before You Set the Time and Date !
The times displayed in the Timekeeping Mode and World
Time Mode are linked. Because of this, make sure you
select a Home Time zone before you set the time and
date.
Timekeeping Mode Stopwatch Mode Preset Timer Mode Alarm ModeWorld Time ModeCountdown Timer Mode
Press .
Hour : Minutes
Day of week
PM indicator
Seconds
Month – Day
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.
• For details about time zones, see the “City Code Table”.
• See “Daylight Saving Time (DST)” for details about DST setting.
4. Press A to exit the setting screen.
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
To toggle the Timekeeping Mode time between DST and Standard Time
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C to display the DST setting screen.
3. Press D to toggle between Daylight Saving Time
(
ON
displayed) and Standard Time (
OFF
displayed).
4. Press A to exit the setting screen.
• The DST indicator appears on the display to indicate
that Daylight Saving Time is turned on.
Seconds City Code
Hour
Year MinutesDay
DST
Month
3. When the setting you want to change is flashing, use D and B to change it as
described below.
Screen
50
OFF
P
10:58
6-30
To do this:
Reset the seconds to
00
Toggle between Daylight Saving Time (
ON
)
and Standard Time (
OFF
)
Change the city code
Change the hour or minutes
Change the year
Change the month or day
Do this:
Press D.
Press D.
Use D (east) and B (west).
Use D (+) and B (–).
DST indicator
To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press D 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, without
any indicator.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
• The P indicator is not displayed when the current time is displayed in other modes.
Stopwatch
The stopwatch lets you measure elapsed time. The upper
display and lower display can be used for official timing of
an event or game.
• The measurement range of the upper display is
59 minutes 59 seconds.
• The measurement range of the lower display is
99 minutes 59 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.
• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C.
Minutes' Seconds
* Press D to pause and
restart elapsed time
measurement.
Minutes' Seconds''
* This time measurement cannot be
paused.
It shows the total elapsed time
since the timing operation started.
Elapsed Time Screen
* This time measurement (1/100
second) cannot be paused.
To measure times with the stopwatch
Elapsed Time
Start
Stop*
1
Re-start
Hold down
Stop*
1
Clear
*1 Elapsed time measurement in the lower display continues.
Using the Watch to Officially Time a Sporting
If you set a game or event time, the watch will sound an alarm when the time in the
lower display reaches that time.
If the event is interrupted for some reason, you can press D to pause and restart
timing in the upper display. The lower display shows the total elapsed time since the
start of the timing operation. You can calculate the total amount of time that play was
interrupted (lost time or injury time) by subtracting the upper display time from the
lower display time.
Current time
Initial Stopwatch Mode
Screen
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