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Operation Guide 4799 5034
2
To start an elapsed time operation while in the Timekeeping Mode
1. In the Timekeeping Mode, press B to start elapsed time measurement.
• After pressing B in the Timekeeping Mode, elapsed time measurement will not
start for about one second.
• The elapsed time measurement will not start if you press B in the Timekeeping
Mode while either of the following conditions exists.
While an alarm is sounding
While the watch is changing from one date to the next (at midnight)
2. Press B to stop elapsed time measurement.
• You can restart and stop elapsed time measurement as many times as you like by
pressing B.
• The 1/20 second hand rotates during the first 60 seconds only, and then stops.
When elapsed time measurement is stopped (by pressing B), the 1/20 second
hand jumps to the 1/20 second indication (which is kept internally).
3. Check the elapsed time.
• After you are finished measuring elapsed time, press D to reset the stopwatch to all
zeros. The stopwatch will stop and reset to all zeros even if you press D while
elapsed time measurement is in progress.
•
To return to the Timekeeping Mode, press
D
while the stopwatch is reset to all zeros.
World Time
The World Time Mode shows you the current time in 27
cities (29 time zones) around the world. A simple
operation swaps your Home City with the currently
selected World Time city.
• When you enter the World Time Mode, the stopwatch
second hand will move automatically to the city code
that is currently selected as the World Time city code. At
the same time, the World Time dial hands will move to
the current time in that city.
• If the current time shown for a city is wrong, check your
Home City settings and make the necessary changes.
• All of the operations in this section are performed in the
World Time Mode.
World Time dial
(24-hour format)
Second
hand
City code
Stopwatch second hand
To view the time in another city
In the World Time Mode, use D to move the stopwatch second hand to the city code
of the city you want to select as the World Time city.
• The World Time dial hands will move to indicate the current time in the selected city
code. The day display will continue to indicate the day in your Home City.
• For full information on city codes, see the “City Code Table”.
To check whether the time for the selected city code is Standard Time or
Daylight Saving Time
1. In the World Time Mode, use D to select the city code that you want to check.
2. Press A.
• The second hand will move to OFF in the case of Standard Time, and ON in the
case of Daylight Saving Time.
• If you do not perform any operation for about three seconds, the watch will
automatically return to normal timekeeping.
To toggle a city code time between Standard Time and Daylight Saving Time
1.In the World Time Mode, use D to select the city code
whose Standard Time/Daylight Saving Time setting you
want to change.
2.Hold down A for about three seconds until the watch
beeps. This will cause the second hand to toggle
between ON (Daylight Saving Time) and OFF
(Standard Time).
• Note that you cannot switch between Standard Time and
Daylight Saving Time while GMT is selected as the city
code.
• Note that the Standard Time/Daylight Saving Time
setting affects only the currently displayed city code.
Other city codes are not affected.
Hold down
A for three
seconds.
▲
▲
Swapping your Home City and World Time City
You can use the procedure below to swap your Home City and World Time city. This
changes your Home City to your World Time city, and your World Time city to your
Home City. This capability can come in handy when you frequently travel between two
cities in different time zones.
To swap your Home City and World Time city
1. In the World Time Mode, use D to select the World Time city you want.
2. Hold down B for about three seconds until the watch beeps.
• This will make the World Time city (which you selected in step 1), your Home City. At
the same time, it changes the Home City you had selected prior to step 2 your World
Time city.
• After swapping the Home City and World Time city, the watch stays in the World
Time Mode with the city that was selected as the Home City prior to step 2 now
displayed as the World Time city.
Alarm
When the alarm is turned on, the alarm sounds when the
alarm time is reached.
• Whenever you enter the Alarm Mode, the stopwatch
second hand will move to the ALM position. The second
hand will move to the alarm’s current ON/OFF status.
• All of the operations in this section are performed in the
Alarm Mode.
To set an alarm time
1.In the Alarm Mode, hold down A for about three
seconds until the watch beeps. This indicates it is in the
setting mode.
• The second hand will move to ON (alarm on) at this
time.
Mode indicator
Alarm time hour hand
(24-hour format)
Alarm time minute hand
Second hand
2. Use D (+) and B (–) to change the alarm time setting.
• Each press of either button changes the setting by one minute.
3. After setting the alarm time, press A to exit the setting mode.
• Setting the alarm time causes the alarm to turn on automatically.
Alarm Operation
The alarm tone sounds at the alarm time for 10 seconds, regardless of the mode the
watch is in.
• Alarm operations are performed in accordance with the Timekeeping Mode time.
• Pressing any button stops the alarm tone operation.
To toggle an alarm on and off
In the Alarm Mode, press A to toggle the alarm setting indicated by the second hand
ON or OFF.
Adjusting the Home Positions
If you notice that the watch hands are not indicating 12 o’clock, ON/OFF settings, or
other indicator settings correctly, you can adjust the “home positions” of the hands
manually to correct them.
To adjust the home positions
1.In the Timekeeping Mode, as you hold down A, hold
down C for about three seconds until the watch beeps.
• This indicates that the watch is in the time and day
home position adjustment mode.
• If the second hand moves to “0”, it is in the correct
home position. If it doesn’t, use D to move the
second hand to “0”.
• The stopwatch second hand is also in the proper
home position if it moves to 12 o’clock. If it doesn’t,
press B to move it to 12 o’clock.
Stopwatch second hand
Second hand
Correct second hand and
stopwatch second hand
home position
2.After confirming that the second hand and stopwatch
second hand are both at the proper home positions,
press C.
This will switch to hour hand and minute hand home
position adjustment.
• The hour hand and minute hand are at their proper
home positions if they both move to 12 o’clock, and if
the 24-hour hand is pointing at hour 24. If the hands
are not positioned correctly, use D (+) and B (–) to
move all three hands to their proper home positions.
• The 24-hour hand moves in accordance with the hour,
minute, and second settings. As you set the time, take
care to ensure that the 24-hour hand also is at the
correct position.
3.After confirming that the hands are in the correct home
positions, press C. This will advance to World Time/
Alarm Time hand home position adjustment.
Minute hand
Hour hand
24-hour hand
Correct hour and minute
hand home position
• If the World Time/Alarm Time hands (hour, minute)
both point at 24, it means that they are at their proper
home positions. If they aren’t, use D (+) and B (–)
to move the hands until they point at 24.
4.After confirming that the World Time/Alarm Time hands
are in the correct home positions, press C. This will
advance to day home position adjustment.
• The day is in the correct home position if it shows “1”.
If it doesn’t, use D (+) and B (–) to change the day
to “1”.
5.To return to the Timekeeping Mode, press A.
Day
World time/Alarm time hands
Correct World Time/Alarm
Time hand home positions
Correct day home position
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 the watch in the Alarm Mode for two or three minutes without performing
any operation, it returns to the Timekeeping Mode automatically.
• If you do not perform any operation for about two or three minutes while a setting
mode is selected, the watch will exit the setting mode automatically.
High-Speed Movement
• The D and B buttons are used to change the hand setting in various setting
modes. In most cases, holding down these buttons will start high-speed movement
of the applicable hand(s) and day.
• High-speed movement of the hands and day will continue until you press any button,
or until the moving hand(s) and day finish one complete cycle.
– One complete cycle for the hands is 24 hours.
– One complete cycle for the day is 31 days.
Timekeeping
• The date will change automatically when the current time reaches midnight. The
date change at the end of the month may take more time than normal.
• The current time for all city codes in the Timekeeping Mode is calculated in
accordance with the Greenwich Mean Time (GMT) differential of each city, based on
your Home City time setting.
• GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC
*) data.
* UTC is the world-wide scientific standard of timekeeping. It is based upon carefully
maintained atomic (cesium) clocks that keep time accurately to within
microseconds. Leap seconds are added or subtracted as necessary to keep UTC
in sync with the Earth’s rotation. The reference point for UTC is Greenwich,
England.