Hold down (B) for at least 1.5 seconds.
Release the button as soon as the second
hand points to "T(TIME)".
The second hand will move in the
following sequence: "Y(YES)" or
"N(NO)" n "T(TIME)".
This indicates that time information
receipt has started.
If information acquisition is successful,
the second hand will move to "Y(YES)",
and then the watch will automatically
adjust its time and day settings.
If reception fails for some reason, the
second hand will move to "N(NO)" and
then the watch will indicate the current
time and day without adjusting them.
Receive takes anywhere from about
six to 60 seconds.
It can take as long as 13 minutes
when leap second information is
Receiving a Time Information
When the conditions below are satisfied, the
watch will automatically receive time
information from a GPS signal. If any time
information receive is successful, the watch
will no longer attempt to receive a signal for
the rest of the day.
In the Timekeeping Mode
Current time is between 6:00 a.m. and 10:00
Light (near a window on a clear day)
continually shining on the face of the watch
for about one to two minutes.
Time calibration signal reception was not
successful during the previous evening.
The time information receive
operation takes anywhere from
about six to 60 seconds.
The receive operation can take as
long as 13 minutes when leap
second information is included.
Operation Guide 5501
Leap Second Reception
GPS signal reception each year on June 1 or
later and on December 1 or later also receives
leap second information.
It can take as long as 13 minutes to
complete leap second information
Leap second information receive is
repeated until information receipt is
Once leap second information
receive is complete, the watch will
not make any attempt to receive it
again until the following June 1 or
When connecting with a phone to
adjust the watch date and time
settings, leap seconds will also be
received along with the time
information. If this happens, leap
seconds may not be received when
receiving a GPS signal.
Time Adjustment Using a
Time Calibration Signal
Appropriate Signal Reception
A time calibration signal can be received while
the watch is near a window.
Keep metal objects away from the watch.
Do not move the watch.
Do not perform any operation on the watch.
6 o'clock position
You may experience time calibration
signal reception problems in the
areas described below.
Among or near buildings
While riding in a vehicle
Near household appliances,
office machines, mobile phones,
On a construction site, in an
airport, or any other location
where radio wave interference
Near high-voltage lines
In mountainous areas or behind a
Time Calibration Signal Reception
Time calibration signal reception is supported
in the areas shown below.
Japan Time Calibration Signal (JJY)
Chinese Time Calibration Signal (BPC)
U.S. Time Calibration Signal (WWVB)
2,000 miles (3,000 kilometers)
U.K. (MSF) and German (DCF77) Time
The Anthorn signal is receivable within this area.
Even if you are within the normal
reception range of a time calibration
signal, reception may be made
impossible by the following factors:
geographic contours, weather, the
season, the time of day, wireless