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Operation Guide 4312/4313
3
3. Press the
DD
DD
D button to
toggle the setting
between ON and OFF.
4. When the setting is the
way you want, press the
AA
AA
A button to exit the
setting screen.
• Press the D button to
return to the Timekeeping
Mode.
• The display also will exit the
setting screen automatically
if you do not perform any
operation for about two or
three minutes.
Configuring Auto Receive Settings
Use the procedure below to turn auto calibration signal reception
on and off.
• For information about selecting a Home City, see “Configuring
Home Time Settings”.
• The following procedure can be performed when any one of the
following city codes is selected as the Home Time: TYO, SEL,
HKG, YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC,
YHZ, or YYT.
1. In the Timekeeping Mode,
press the
DD
DD
D button to
display the last reception
date and time.
• This displays the last
reception date and time
screen.
• The display will return to the
normal timekeeping screen
automatically if you do not
perform any operation for
about one or two minutes.
2. Hold down the
AA
AA
A button
for about two seconds
until the current auto
receive setting flashes on
the display.
• This is the auto receive
setting screen.
Reception Time
Calibration Signal Reception
Precautions
• Auto receive can be performed while the watch is in the
Timekeeping Mode or World Time Mode only.
• Signal reception is not possible while a timer operation is in
progress.
• Receipt of a calibration signal causes the digital time to be
adjusted first, followed by adjustment of the analog time. In order
to ensure correct correction of the analog time, be sure to match
the analog time with the digital time before performing a signal
receive operation.
• Operating any button while auto receive is in progress will cause
the watch to beep and then exit the receive operation.
• Make sure you are within the range of the calibration signal
transmitter before performing the reception operation. Remember
that geographic contours, nearby buildings, the season, the time
of day, can even make reception impossible even when you are
within range of the transmitter.
• Proper reception may be impossible if there is something blocking
the signal. If reception is unsuccessful, try again.
• This watch is designed to adjust its current time setting in
accordance with the calibration signal transmitted in Japan and
the United States only. Note that you will need to make your own
adjustments when using this watch outside of Japan or the United
States, or in any area that is outside the range of one of the
receivable time calibration signal transmitters.
• When the watch is unable to adjust its time signal using the
calibration signal for some reason, timekeeping accuracy is within
±15 seconds per month.
• Strong electrostatic charge can cause timekeeping error.
• Signal reception is cancelled if an alert operation starts while it is
being performed.
• The watch’s calendar shows dates up to the year 2099.
Attempting a receive operation after that causes an error.
When the Home City is TYO, SEL, or HKG
• ON
Selecting this setting turns on auto receive and auto
transmitter selection. The watch selects either the Otakadoya
Mountain signal (40 kHz) or the Hagane Mountain signal
(60 kHz) automatically, whichever is strongest.
• The transmitter from which a signal was last successfully
received will be given priority for the next auto receive
operation.
• OFF
Selecting this setting turns off auto receive and auto
transmitter selection.
When the Home City is YVR, LAX, YEA, DEN, MEX,
YWG, CHI, MIA, YTO, NYC, YHZ, or YYT
• ON
Selecting this setting turns on auto receive. The watch always
receives the Fort Collins signal.
• OFF
Selecting this setting turns off auto receive.
• Is the watch in any mode other than the Timekeeping Mode or
World Time Mode during the auto receive times (midnight, 1:00
a.m., 2:00 a.m., 3:00 a.m., 4:00 a.m., and 5:00 a.m.)?
Auto receive is performed only when the watch is in the
Timekeeping Mode or World Time Mode. It is not performed if the
watch is in any other mode.
• Is a timer operation in progress?
Calibration signal reception is disabled while a timer operation is
in progress. Because of this, you should avoid performing timer
operations during the timeframes that signal reception is
performed, or perform manual receive after your timer operation is
complete.
2. Time calibration signal reception is successful, but the
hourly time signal and current time are off slightly.
• After the watch receives the time calibration signal, it performs an
internal decoding process before updating its time setting.
Because of this, the time setting may be off slightly (within one
second).
3. Time calibration signal reception is successful, but the
current time is one hour fast.
• Do you have summer time (DST) turned on? Use the procedure
under “Configuring Home Time Settings” to select either AUTO or
OFF for the summer time setting.
Troubleshooting
1. The watch cannot receive the time calibration signal.
• Is the signal being transmitted?
Though the time data of the Japanese calibration signal (Call
Sign: JJY) is maintained by the Japan Standard Time Group of
the National Institute of Information and Communications
Technology (NICT), it may be interrupted sometimes for periodic
maintenance work, or because of lightning or other problems.
• Are you within the reception range of a transmitter?
See “Reception Ranges” for information about areas where the
watch can receive the signal.
• Is there something in the immediate area that may be interfering
with reception?
Even if you are within the reception range of a transmitter, objects
between you and the transmitter or electrical noise can interfere
with reception. Avoid such areas during signal reception. See
“Location”.
• Do you have the correct Home City code selected?
Remember that auto receive is not performed unless one of the
following is selected as the Home City: TYO (Tokyo), SEL (Seoul),
HKG (Hong Kong), YVR (Vancouver), LAX (Los Angeles), YEA
(Edmonton), DEN (Denver), MEX (Mexico), YWG (Winnipeg), CHI
(Chicago), MIA (Miami), YTO (Toronto), NYC (New York), YHZ
(Halifax), or YYT (St. John’s). Correctly select your Home City
using the procedure under “Configuring Home Time Settings”.
• Is auto receive turned off?
Use the procedure under “Configuring Auto Receive Settings” to
turn on auto receive.
8. How can I perform manual receive?
• Hold down the lower right D button for about two seconds. The
watch will beep to indicate that manual receive has started. Place
it near a window, with 12 o’clock facing in the general direction of
the transmitter.
9. How can I view the last reception date and time?
• In the Timekeeping Mode, press the lower right D button. This
will display the date and time that the time calibration signal was
last received successfully. To return to the Timekeeping Mode,
press the D button again.
If you cannot receive the calibration signal or if the current time
setting is incorrect after signal reception, check the current setup
of the watch.
Factory Default Settings
Auto Receive
Home City
Summer Time
On
Hong Kong
Off
Default Settings Following Battery Replacement
Auto Receive
Home City
Summer Time
On
Tokyo
Auto (according to signal data)
4. Time calibration signal reception is successful, but the
current time setting is wrong.
• Is TYO (Tokyo) or HKG (Hong Kong) selected for your Home
City? Correctly select your Home City using the procedure under
“Configuring Home Time Settings”.
5. The digital time and analog time are different.
• Normally, the received time calibration data is used to adjust the
digital display time, and then the analog hands are adjusted to
match the digital time. If the hands are misaligned for some
reason, they will not indicate the correct time. If this happens, use
the procedure under “Setting the Analog Time Manually” to adjust
the analog time.
6. Can you configure auto receive settings?
• Remember that auto receive is not performed unless one of the
following is selected as the Home City: TYO (Tokyo), SEL (Seoul),
HKG (Hong Kong), YVR (Vancouver), LAX (Los Angeles), YEA
(Edmonton), DEN (Denver), MEX (Mexico), YWG (Winnipeg), CHI
(Chicago), MIA (Miami), YTO (Toronto), NYC (New York), YHZ
(Halifax), or YYT (St. John’s). Correctly select your Home City
using the procedure under “Configuring Home Time Settings”.
7. What time is auto receive performed?
• Auto receive is performed in the middle of the night, when
reception conditions are best. Before going to bed at night, place
the watch near a window, with 12 o’clock facing in the general
direction of the transmitter.