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USER’S GUIDE 2512
2
To perform manual time calibration signal reception
1. Place the watch on a stable surface so its top (12 o’clock side) is facing in the
general direction of the signal transmitter.
• Note that signal reception is poor if the watch is on its back or side.
2.In the Timekeeping Mode, hold down A for about two
seconds until the watch beeps.
• Release A and the message receiving appears to
indicate that signal reception has started.
• Time calibration signal reception takes from two to six
minutes. Take care that you do not move the watch
during this time.
• After signal reception is complete, the display of the
watch changes to the Last Signal screen.
• The receive indicator indicates that the calibration time
reception attempt was successful.
Receive indicator
Note
• To interrupt a receive operation and return to the Timekeeping Mode, press A.
• If the receive operation is unsuccessful, the message ERROR! appears on the
display for about one or two minutes. After that, the watch returns to the
Timekeeping Mode.
• You can also change from the Last Signal or ERROR! screen to the normal
timekeeping screen by pressing A.
About the Receive Indicator
The receive indicator shows the strength of the calibration signal being received. For best
reception, be sure to keep the watch in a location where signal strength is strongest.
Weak
Strong
• Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the receive indicator to indicate signal strength.
• Use the receive indicator as a guide for checking signal strength and for finding the
best location for the watch during signal receive operations.
• The receive indicator remains on the display in all modes following reception of the
time calibration signal and calibration of the watch’s time setting. The receive
indicator does not appear if signal reception was unsuccessful or after manual
adjustment of the current time setting.
About Auto Receive
When auto receive is turned on, the watch automatically starts to receive the time
calibration signal when the time in the Timekeeping Mode reaches 2:00 AM, 4:00 AM
and 6:00 AM each day (calibration times).
Note
• The auto receive operation is performed only if the watch is in the Timekeeping or
World Time Mode when one of the calibration times is reached.
It is not performed if a calibration time is reached while you are making settings
(while settings are flashing on the display), while an alarm is sounding, or while a
silent alert operation is being performed.
• Auto receipt of the calibration signal is designed to be performed early in the
morning, while you sleep (provided that the Timekeeping Mode time is set correctly).
Before going to bed for the night, remove the watch from your wrist, and put it in a
location where it can easily receive the signal.
• The receive indicator indicates that either the 2:00 AM, 4:00 AM, or 6:00 AM
calibration signal reception was successful. Note, however, that the receive indicator
is cleared from the display at 3:00 AM each day.
• If you do not see the receive indicator except for the above reason, it means there
was some problem with the calibration reception operation. Either perform reception
manually, or make sure the watch is set up properly to receive the time calibration
signal for the next automatic reception time.
• Though this watch is designed to receive both time data (hour, minutes, seconds)
and date data (year, month, day), certain signal conditions can limit reception to time
data only.
• The receive indicator (
) appears only when the watch is able to successfully
receive both time and date data. It does not appear when only time data is received.
When time and date data is received: Receive indicator (
) appears.
When time data only is received: Receive indicator (
) does not appear.
• Normally, the signal reception date shown by the Last Signal screen is the date data
included in the received time calibration signal. When only time data is received,
however, the Last Signal screen shows date as kept in the Timekeeping Mode at the
time of signal reception.
• When auto receive is turned on, the watch receives the calibration signal for two to
six minutes each day when the Timekeeping Mode time reaches 2:00 AM, 4:00 AM
and 6:00 AM. Do not operate any of the watch’s buttons within six minutes prior to or
following the calibration times. Doing so can interfere with correct calibration.
• Remember that reception of the calibration signal depends on the time kept in the
Timekeeping Mode. The receive operation will be performed whenever the display
shows 2:00 AM, 4:00 AM and 6:00 AM, regardless of whether or not the
Timekeeping Mode time is actually the correct time.
• When two or three receptions are successful, the watch uses the data of the last
reception for calibration. When only one reception is successful, the watch uses the
data of the successful reception.
To turn auto receive on and off
1.In the Timekeeping Mode, press B. This causes the
current auto receive on/off setting (the receive indicator)
to flash, which indicates the setting screen.
2.Press D to toggle auto receive on (ON) and off (OFF).
3.Press B to exit the setting screen.
Setting the Time and Date Manually
Make sure you select your Home City code (the city code whose time and date you
are setting) before change the current time and date settings. World Time Mode times
are all displayed in accordance with the Timekeeping Mode settings. Because of this,
World Time Mode times will not be correct if you do not select the proper Home City
code before setting the time and date in the Timekeeping Mode.
To set the current time and date manually
1.In the Timekeeping Mode, press B. This causes the
current auto receive on/off setting (the receive indicator)
to flash, which indicates the setting screen.
2.Press C to move the flashing in the sequence shown
below to select other settings.
Auto
Receive
Seconds
DST
12/24-Hour
Format
City Code
Power Saving
on/off
Hour
Month
Year Minutes
Day
ScreenSetting
Auto Receive
City code
DST
3. When the setting you want to change is flashing, use A and/or D to change it as
described below.
12/24-Hour format
Hour, Minutes
Seconds
Month, Day, Year
Power Saving
on/off
Press D to toggle between 12-hour (12H)
and 24-hour (24H) timekeeping.
Use D (+) and A (–) to change the setting.
Press D to reset the seconds to 00.
Use D (+) and A (–) to change the
setting.
Press D to toggle the Power Saving on
(ON) and off (OFF).
4. Press B to exit the setting screen.
• The auto receive setting is used for time calibration signal reception only. See
“About Auto Receive” for details.
• See “City Code Table” for a complete list of available city codes.
• Resetting the seconds to 00 while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to 00 without changing the minutes.
World Time
World Time shows the current time in 30 cities (29 time
zones) around the world.
• For full information on city codes, see the “City Code
Table”.
• The current time for all city codes in the World Time
Mode is calculated in accordance with the Greenwich
Mean Time (GMT) differential for each city, based on the
your Home City time setting.
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
Current time in the
selected city code
City code
GMT
differential
To view the time in another city code
While in the World Time Mode, press D to scroll through the city codes (time zones)
to the east or A to scroll to the west.
• If the current time shown for a city is wrong, check your Timekeeping Mode time and
Home City settings and make the necessary changes.
To toggle a city code time between standard time and Daylight Saving Time
1.In the World Time Mode, use A and D to display the
city code (time zone) whose standard time/Daylight
Saving Time setting you want to change.
2.Press B to toggle Daylight Saving Time (DST
displayed) and standard time (DST not displayed).
• The DST indicator is on the display whenever you
display a city code for which Daylight Saving Time is
turned on.
• Note that the DST/Standard Time setting affects only the
currently displayed city code. Other city codes are not
affected.
• Daylight Saving Time (DST) advances the time setting by one hour from Standard
Time. Remember that the not all countries or even local areas use Daylight Saving
Time.
• The watch will perform a signal receive operation even if it is in the World Time
Mode when a calibration time is reached. If this happens, the World Time Mode time
settings will be adjusted in accordance with the Timekeeping Mode’s Home City
code time.
Button Operations
Press D to toggle auto receive on and off.
Use D (+) and A (–) to change the
setting.
Press D to toggle between Daylight Saving
Time (ON) and standard time (OFF).
• Pressing D performs a different operation
when BER, PAR, LON or ATH is selected
as Home City Code. See “Auto Summer
Time (DST) Switching”.