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Operation Guide 2877
MA0409-EA
About This Manual
• 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.
Timekeeping Mode Stopwatch Mode Recall Mode Countdown Timer Mode World Time Mode Alarm Mode
Press .
General Guide
• Press D to change from mode to mode.
City code
Day of week
PM indicator
Seconds
Hour : Minutes
Year Month – Da
y
Timekeeping
Use the Timekeeping Mode to set and view the current
time and date.
Read This Before You Set the Time and Date !
This watch is preset with a number of city codes, each of
which represents the time zone where that city is located.
When setting the time, it is important that you select the
correct city code for your Home City (the city where you
normally use the watch). If your location is not included in
the preset city codes, select the preset city code that is in
the same time zone as your location.
• Note that all of the times for the World Time Mode city
codes are displayed in accordance with the time and
date settings you configure in the Timekeeping Mode.
• After you correctly set your Home City time and date, you can set the watch up for
timekeeping with a different city code simply by changing the Home City code in the
Timekeeping Mode.
To set the time and date
1.In the Timekeeping Mode, hold down B until the
seconds start to flash, which indicates the setting
screen.
2.Press D twice to move the flashing to the Home City
code setting (see the illustration below), and then use
C and A to select the code you want.
• Make sure you select your Home City code before
changing any other setting.
• For full information on city codes, see the “City Code
Table”.
3.Press D to move the flashing in the sequence shown
below to select the other settings.
Seconds DST City Code Hour Minutes
YearMonthDay 12/24-Hour format
4. When the setting you want to change is flashing, use C and A to change it as
described below.
Screen
10:58 50
P
OFF
P
TYO
10:58 50
P
12H
04 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
Toggle between 12-hour (12H) and
24-hour (24H) timekeeping
Change the year, month, or day
Do this:
Press C.
Press C.
Use C (east) and A (west).
Use C (+) and A (–).
Press C.
Use C (+) and A (–).
5. Press B to exit the setting screen.
• See “Daylight Saving Time (DST)” below for details about the DST setting.
• The year can be set in the range of 2000 to 2039. The day of the week is calculated
automatically in accordance with the date.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the digital time setting by one hour
from Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
• Note that you cannot switch between Standard Time and Daylight Saving Time while
GMT (Greenwich Mean Time) is selected as your Home City code.
To toggle the Timekeeping Mode time between DST and Standard Time
1.In the Timekeeping Mode, hold down B until the
seconds start to flash, which indicates the setting
screen.
2.Press D once to display the DST setting screen.
3.Press C to toggle between Daylight Saving Time (
ON
displayed) and Standard Time (OFF displayed).
4.Press B to exit the setting screen.
• The DST indicator appears on the display to indicate
that Daylight Saving Time is turned on.
Stopwatch
The 1/100-second stopwatch measures elapsed time, as well as lap/split times. You
can also store run data in memory.
• All of the operations in this section are performed in the Stopwatch Mode, which you
enter by pressing D.
Lap/Split number
Lap time (hours,
minutes, seconds,
1/100 second)
Split time
Lap/Split
indicator
Timing in Progress
Run number
All Zero Clear
Important!
• A “run” is the total elapsed time and all the lap/split times you recorded from the
point you start the stopwatch until you stop it. The watch stores each run as a
separate memory record.
• The run number that appears on the display whenever you clear the stopwatch to all
zeros indicates the number of the next run record that will be created when you
perform a stopwatch operation. The watch automatically increases the run number
by one each time you store run data.
• “Lap time” is the time spent to cover a specific segment of a race, such as one lap
around a track. “Split time” is the time spent from the beginning of a race up to a
certain point.
• Pressing B in the Stopwatch Mode switches the positions of the lap time and split
time between the middle display area and the lower display area. Arrows appear
next to the LAP and SPLIT indicators to show which time is in the middle (up arrow)
and which time is in the lower (down arrow) display area.
• The hour of the time currently in the middle display area is indicated to the left of the
lap/split number in the upper display area.
• The display range for the middle display area is 9 hours, 59 minutes, 59.99 seconds.
For the lower display area, it is 99 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.