Before use
Checking the charging status
1
2
When the movement of the second hand shows an energy depletion state, the battery requires charging.
The second hand
The watch is
moves at one-
sufficiently charged.
second intervals.
The second hand
moves at two-
second intervals.
The charged energy is depleted.
The second hand
moves at five-
second intervals.
The power save function is activated. → P.113
Check the movements of the second hand
The second hand
after releasing the Power Save mode.
is stopped.
The energy stored in the watch runs low.
※ If the second hand does not move at one-second intervals even after fully charging the battery → Charging the solar battery in At Trouble on P.148
96
Setting the time by receiving a radio signal
■ Mechanism of radio signal reception
The radio-controlled watch displays the precise Time by automatically receiving and
synchronizing itself with the radio signal of an official standard frequency.
3
Transmitting
Station
Official standard
frequency
Cesium
Atomic Clock
Time signal transmitted by a standard frequency is based on a super accurate "Cesium
Atomic Clock" that may have a 1 second loss or gain per one hundred thousand years.
98
Charge the
→ P.1 12
battery
sufficiently.
How to
Charge the
Watch
→ P.110
Radio-controlled watch
Receive radio signals
through the antenna
inside the watch
↓
Analyze time
information
↓
Display the current
Time
Checking the time
2
※ T he hands of this watch cannot be moved by turning the crown. So when
adjusting the time, refer to the following pages regarding the procedures.
When the time
Use the watch
are correct
without adjustment.
How to set the
time difference
When the
(Selecting a
time are
radio signal
incorrect
transmitting
station)
→ P.116
■ Automatic reception and manual reception
・ Automatic reception
T his watch sets the time by automatically receiving a radio signal at a fixed time.
This watch automatically receives a radio signal before 2:00 a.m. and 4:00 a.m.
※ When the reception is successful, the watch finishes the automatic reception.
・ P lace the watch in a place where it can easily receive a radio signal (by the window, etc.)
・Do not move the watch during the radio signal reception.
→ To Improve Radio Signal Reception P.105
・ Manual reception
T his watch can receive a radio signal arbitrarily at any time other than the
automatic reception mode.
→ How to conduct manual reception P.138
※ W hen the time difference is set for a region other than radio signal reception range, a radio signal cannot be received.
C heck the setting of the time difference → Setting the time difference (selecting a radio signal transmitting station) P.116
※ R adio signal reception results depend on a receiving environment. → Environments in which it is
difficult to receive a radio signal P.106
※ T he watch cannot receive a radio signal outside the radio signal reception range. → Radio signal
reception range indication P.100
※ W hen the watch does not display the correct time even after successfully receiving a radio signal.
→ Troubleshooting: Misalignment of the time and hands P.150
Setting the time by
When the radio signal
receiving a radio signal
can be received
→ P.138
Radio signal reception range indication
→ P.100
Environments in which it is difficult to receive a radio signal → P.106
When a radio signal
Manually set the time
cannot be received
→ P.141
2
97
3
99