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Acquiring GPS Time Information
Manually
You can use a button operation on the watch
to receive GPS signal time information. When
the receive operation is successful, the
watch's Home City (time zone), day, and time
settings will be adjusted accordingly.
Note
GPS signal reception requires large
●
amounts of power. Perform it only
when necessary.
Getting ready
The receive operation is performed only while
the watch is in the Timekeeping Mode (normal
timekeeping).
Normally the mode hand points to the
●
current day of the week.
Navigating Between Modes
l
Mode
hand
1.
Move to a location appropriate for signal
reception and orient the watch so its
display is pointed straight up at the sky.
2.
Hold down (B) for at least one second.
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.
Operation Guide 5455
Note
Reception takes anywhere from
●
about seven seconds to about one
minute.
It can take as long as 13 minutes
●
when leap second information is
included.
Auto GPS Signal Receive
When the conditions below are satisfied, the
watch will automatically receive 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.
Time information
●
Watch in the Timekeeping Mode (normal
●
timekeeping)
Current time is between 6:00 a.m. and 10:00
●
p.m.
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.
Position information
●
Watch in the Timekeeping Mode (normal
●
timekeeping)
The watch exited the Airplane Mode.
●
Current time is between 6:00 a.m. and 10:00
●
p.m.
Light (near a window on a clear day)
●
continually shining on the face of the watch
for about one to two minutes.
Note
The time information receive
●
operation takes anywhere from
Second
hand
about seven seconds to one minute,
while position information
acquisition takes anywhere from
about 30 seconds to two minutes.
The receive operation can take as
●
long as 13 minutes when leap
second information is included.
Leap seconds
A GPS signal received on or around June 1 or
December 1 each year may also include leap
second information.
Note
The receive operation can take as
●
long as 13 minutes when leap
second information is included.
Once leap second information is
●
successfully received, the watch will
not make any attempt to receive it
again until the next leap second
information is sent (the following
June 1 or December 1).
Time Adjustment Using a
Time Calibration Signal
Appropriate Signal Reception
Location
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
Note
You may experience time calibration
●
signal reception problems in the
areas described below.
Among or near buildings
ー
While riding in a vehicle
ー
Near household appliances,
ー
office machines, mobile phones,
etc.
On a construction site, in an
ー
airport, or any other location
where radio wave interference
occurs
Near high-voltage lines
ー
In mountainous areas or behind a
ー
mountain
6
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