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Timekeeping (Based on GPS Signals)
Appropriate Signal Reception Location (GPS Signal)
When performing GPS signal reception, move the watch outside where there is a clear view of the sky
above, with no obstructing buildings, trees, or other objects.
GPS signal reception is not possible in the areas described below.
- Where the sky is not visible
- Underground or in a tunnel
- Indoors (Reception may be possible near a window.)
- Near wireless communication equipment or other devices that generate magnetism
E-8
◆ Receiving GPS Time Information
Perform this operation when you suspect that the time normally indicated by the watch is not correct.
If the GPS signal time information receive operation is successful the watch will automatically adjust
the current time and day settings of the Home City (time zone).
Important!
Perform this operation in the Timekeeping Mode (not in the Airplane Mode). See "Mode Reference
Guide" (page E-14).
1. Move to a location appropriate for signal reception and orient the
watch so its display is pointed straight up at the sky. See "Appropriate
Signal Reception Location (GPS Signal)" (page E-8).
2. Hold down B for at least one second. Release the button as soon as
the second hand points to T (TIME).
Reception normally takes anywhere from seven seconds to one
minute. It can take as long as 13 minutes.
When the receive operation is successful, the watch will adjust its
current time and day settings automatically.
This operation requires large amounts of power. Perform it only
when necessary.
Second hand
E-10
Timekeeping (Based on a Time Calibration Signal)
Appropriate Signal Reception Location (Time Calibration Signal)
Keep the watch away from metal and position it so its 12 o'clock side is
facing a window. Avoid moving the watch as much as possible and do
not perform any watch operations while a signal receive operation is in
progress.
●
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, offi ce machines, mobile phones, etc.
- On a construction site, in an airport, or any other location where radio
wave interference occurs
- Near high-voltage lines
- In mountainous areas or behind a mountain
Always check the time setting on the day there should be switch between
standard time and summer time (DST). If the setting is not correct (due to
signal reception failure), turn DST on or off manually as required.
E-12
Mode Reference Guide
Use C to navigate between modes.
Timekeeping Mode
In the Timekeeping Mode (not in the Airplane Mode), the mode hand will point to the
current day of the week.
In the Airplane Mode, the day of the week hand points to the airplane (
of the day of the week.
Hour hand
Second hand
24-hour hand
Minute hand
A
Day of the
week hand
World Time
minute hand
Crown
C
B
Day Indicator
World Time hour hand
E-14
User's Guide 5411 (MRG)
Note
If you experience signal reception problems, keep the
watch still and point its display straight up at the sky.
While a receive operation is being performed, take care
to avoid covering the watch face with your sleeve.
You may experience GPS signal reception problems in
the areas described below.
- Where the view of the sky above is narrow
- Near trees or buildings
- Near a train station, airport, or other congested areas
12 o'clock
) mark instead
Pressing A turns on the
illumination.
To check the last receive result,
press B once.
Holding down B for about one
second will start a GPS time
information receive operation.
Holding down B for about three
seconds will start a GPS position
information acquisition operation.
Press C once to enter the
Stopwatch Mode.
Performing a GPS Signal Receive Operation Manually
◆ Acquiring GPS Position Information
When position information is acquired successfully, the watch is able to determine its current location
and adjust its time and day setting accordingly.
Important!
Perform this operation in the Timekeeping Mode (not in the Airplane Mode). See "Mode Reference
Guide" (page E-14).
1. Move to a location appropriate for signal reception and orient the watch so its face is pointing straight
upwards.
See "Appropriate Signal Reception Location (GPS Signal)" (page E-8).
Mode hand
Second hand
GPS Signal Auto Receive
Important!
Perform the signal receive operation in the Timekeeping Mode (not in the Airplane Mode). See "Mode
Reference Guide" (page E-14).
●
GPS signal time information is received automatically whenever all of the conditions described
below are satisfi ed.
- The current time is between 6:00 a.m. and 10:00 p.m.
- The face of the watch has been exposed continuously for about one or two minutes to light
equivalent to the brightness near a window on a clear day.
- All time calibration signal receive operations performed during the previous night were unsuccessful.
●
After exiting the Airplane Mode, position information will be acquired automatically from GPS
when the conditions below are satisfi ed.
- The time is between 6:00 a.m. and 10:00 p.m.
- The face of the watch is exposed continuously for about one or two minutes to light equivalent to
the brightness near a window on a clear day.
Time Calibration Signal Auto Receive
Important!
To perform time calibration signal auto receive, the watch must be in the Timekeeping Mode (not in the
Airplane Mode). See "Mode Reference Guide" (page E-14).
●
Leave the watch in a location that is appropriate for time calibration signal reception between
the hours of midnight and 5:00 a.m. See "Appropriate Signal Reception Location (Time
Calibration Signal)" (page E-12).
The second hand will point to RC while time calibration signal reception is in progress.
Reception normally takes anywhere from about two to ten minutes, but it can take as long as
20 minutes.
When the receive operation is successful, the time and day settings will be adjusted automatically.
Holding down C for two seconds in any mode returns to the Timekeeping Mode.
Stopwatch Mode
Stopwatch
1/20 (0.05)-second hand
Points to ST
Start
Stop
C
Reset
Stopwatch minute hand
(0 to 24 minutes)
Stopwatch second hand
2. Hold down B for at least three seconds until the second hand moves
to T+P. If the second hand moves to any other position besides T+P,
keep B depressed until it moves to T+P.
Position information reception takes anywhere from about 30
seconds to two minutes. It can take as long as 13 minutes.
Successful acquisition of position information will automatically
display the time and day for the resulting location.
In the normal (not Airplane Mode) Timekeeping Mode, the mode
hand indicates the current day of the week.
Position information acquisition requires large amounts of power.
Perform the acquisition operation only when it is required.
Countdown Timer
Mode
Seconds
Points to TR
Start
Stop
C
C
Reset
Minutes
0 to 24 hours
E-9
E-11
E-13
Alarm Mode
Points to AL
Illumination
Alarm
ON/OFF
Hour
Minute
C
E-15
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