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Operation Guide 2582 2586
2
To set the time and date manually
1.Make sure that the current time zone setting is the time
zone for which you want to set the time and date.
2.Use C to enter the Timekeeping Mode.
3.Hold down B until the 12/24-hour setting starts to
flash, which indicates the setting screen.
4.Press C to move the flashing in the sequence shown
below to select other settings.
Year
Seconds
Hour
Minutes
12/24-Hour
Format
Day
Month
5. While a setting is flashing, use A (+) and D (–) to change it.
• When the 12/24-hour setting is selected, press A or D to toggle between 12-
hour (12h) and 24-hour (24h) timekeeping.
• While the second’s setting is selected, press A or D to reset the seconds to 00.
Pressing A or D while the second’s count is in the range of 30 to 59 resets the
seconds to 00 and adds 1 to the minutes. In the range of 00 to 29, the minute’s
count is unchanged.
6. Press B to exit the setting screen.
• The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
Timekeeping Mode Screens
You can select one of two different screens for viewing the current time in the
Timekeeping Mode: Home Time and Date screen, or Home Time and UTC (Universal
Time Coordinated) screen. Press D to toggle between the two screen formats.
• Changing the Home Time setting also causes UTC to change accordingly.
▲
▲
Home Time and Date Home Time and UTC
Day of week
Month – Day
Press D.
UTC
PM
indicator
Hour : Minutes Seconds
Alarm
You can set a Daily Alarm that sounds at the same time each day, while it is turned on.
• Alarm settings are available in the Alarm Mode, which you enter by pressing C.
To set the alarm time
1.In the Alarm Mode, hold down B until the hour digits of
the alarm time start 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 A (+) and D (–) to
change it.
• When setting the alarm, take care to set the time
correctly as a.m. (no indicator) or p.m. (P indicator).
4.Press B to exit the setting screen.
Alarm on indicator
Alarm time (Hour : Minutes)
On/Off status
Alarm Operation
The alarm sounds at the preset time for about 30 seconds, or until you stop it by
pressing any button.
To turn the alarm on and off
In the Alarm Mode, press D to turn the alarm on (on displayed) and off (oFF
displayed).
• The alarm on indicator is shown on the display in all modes while the alarm is turned
on.
Date Alert
The Date Alert Mode helps you to remember an important date. After you set an alert
date (month and day), the watch displays a flashing indicator for 24 hours after that
date arrives.
• Note that Date Alert is always on and cannot be turned off. The initial default alert
date is December 24.
To set the alert date
1.Use C to enter the Date Alert Mode.
2.Hold down B until the month digits of the alert date
start to flash, which indicates the setting screen.
3.Press C to move the flashing between the month and
day.
4.While a setting is flashing, use A (+) and D (–) to
change it.
5.Press B to exit the setting screen.
Alert date (Month – Day)
Alert indicator
Stopwatch
The stopwatch lets you measure elapsed time, lap times,
split times, and two finishes.
• The display range of the stopwatch is 99 hours, 59
minutes, 59.99 seconds.
• The stopwatch measurement operation continues until
you stop it or until it reaches 99:59' 59.99" (at which time
the display resets to all zeros).
• 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.
Hours
Minutes
1/100 second
SP indicator
Seconds
To measure elapsed time
1. Press A to start the stopwatch.
2. Press A again to stop the stopwatch.
• You can resume the measurement operation by pressing A.
3. Press D to clear the stopwatch to all zeros.
To measure lap times
1. When the stopwatch display shows all zeros, use D to display the lap time screen
(indicated by LA).
2. Press A to start a time measurement.
3. Press D when you want to freeze the first lap time on the display.
• Though the lap time is frozen on the display, timing of the next lap continues
internally.
4. Press D again to switch back to the ongoing timing of the next lap.
• You can repeat steps 3 and 4 as many times as you want.
5. Press A when you want to stop the lap time measurement.
6. Press D to clear the stopwatch to all zeros.
To measure split times
1. When the stopwatch display shows all zeros, use D to display the split time screen
(indicated by SP).
2. Press A to start a time measurement.
3. Press D when you want to freeze the first split time on the display.
• Though the split time is frozen on the display, timing continues internally.
4. Press D again to switch back to the split time measurement.
• You can repeat steps 3 and 4 as many times as you want.
5. Press A to stop the split time measurement.
6. Press D to clear the stopwatch to all zeros.
To determine the time of 1st and 2nd place finishers
1. When the stopwatch display shows all zeros, use D to display the split time screen
(indicated by SP).
2. Press A to start a time measurement.
3. Press D when the first finisher crosses the finish line.
• This causes the time of the first finisher to be frozen on the display, while elapsed
time measurement continues internally.
4. Press A when the second finisher crosses the finish line.
5. Press D to display the time of the second finisher.
6. Press D to clear the stopwatch to all zeros.
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 on the display for two or three minutes
without performing any operation, the watch automatically saves any settings you
have made up to that point and exits the setting screen.
Data and Setting Scrolling
The A and D buttons are used in various setting screens to scroll through the
available settings on the display. In most cases, holding down these buttons during a
scroll operation scrolls through the settings at high speed.
Timekeeping
• Home Time is displayed in 12-hour or 24-hour format, while UTC is always displayed
in 24-hour format.
• 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, with 24
indicator.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also
applied in all modes.
• The year can be set in the range of 2001 to 2098.
• The watch’s built-in full automatic calendar automatically 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.
UTC
The letters “UTC” stands for “Universal Time Coordinated,” which is the world-wide
standard of timekeeping. It is based upon carefully maintained atomic (cesium) clocks
that keep accurate 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.
Time Calibration Signal Reception Precautions
• This watch receives the time calibration signal (Call
Sign: DCF77) transmitted from Mainflingen, Germany
(located 25 kilometers southeast of Frankfurt). Signal
reception is possible within a radius of about 1,000
kilometers from the Mainflingen transmitter.
• Signal reception may be poor in the shaded area on the
map, even though it is within 1,000 kilometers of the
signal transmitter.
• The current time setting in accordance with the time
calibration signal takes priority over any time settings
you make.
• The Mainflingen time calibration signal includes summer
time (DST) data.
• The watch is designed to automatically update the date
and day of the week for the period January 1, 2001 to
December 31, 2098. Setting of the date by the time
calibration signal cannot be performed starting from
January 1, 2099.
• This watch can receive signals that differentiate between
leap years and non-leap years.
• Reception stops if an alarm starts to sound while the
signal is being received, and restarts after the alarm
operation is complete.
• Even when the watch is within the reception range,
signal reception is impossible if the signal is blocked by
mountains or other geological formations between the
watch and signal source.
• Signal reception is affected by weather, atmospheric
conditions, and seasonal changes.
Frankfurt