Seiko 8B63, Instructions Manual

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※ If the time zone is set to a region other than Japan, China, the United States, Germany and the United
Kingdom, the signal reception function will not work. → Time Zone Display and Time Difference Table P.92
※ Radio Signal reception results depend on a receiving condition. → Environments in which it is difficult to
receive a radio signal on P.106
※ This watch is unable to receive radio signals outside a reception range → Radio signal reception range
indication on P.99
※ When the watch is not displaying the precise time, date and day even after successfully receiving a radio
signal → In this case, refer to Troubleshooting: Misalignment of the time and hands on P.141 and Misalign-
ment of the date and day on P.142.
・ Manual reception
When this watch cannot automatically receive a radio signal due to a difficult
receiving environment, it is possible to receive them arbitrarily at any time.
→ How to conduct manual reception P.125
・ Automatic reception
This watch sets the time, date and day by automatically receiving a radio signal at a fixed
time. It automatically receives a radio signal before 2:00 AM, 3:00 AM and 4:00 AM.
※ When the watch successfully receives a radio signal, it will stop automatic reception.
■ Automatic reception and manual reception
・Place the watch in a place where it can easily receive a radio signal such as near a window.
・ While the watch is receiving radio signals, do not move it.
→ To Improve Radio Signal Reception P.105
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About reception conditions
This watch receives standard radio signals from Japan (2 stations), China, U.S.A. ,Germany and the United Kingdom.
When you set the watch to each time zone, the official standard frequencies the watch receives
will be automatically changed accordingly to the selected time zone. → Setting the Time Zone P.90
■ Radio signal reception range: Japan (JJY)
The reception range from each transmitting station is approximately 1,000 km (1,000 km radius of each station).
JJY is operated by the National Institute of
Information and Communications Technology (NICT).
JJY is transmitted from two stations in Japan.
Each station transmits JJY in a different frequency.
Fukushima (Ohtakadoya-yama
transmitting station: 40 kHz)
Kyushu (Hagane-yama transmitting
station: 60 kHz)
※ NICT: National Institute of Information and
Communications Technology
※ Whether the watch succeeds in receiving radio
signals or not depends on the receiving conditions.
→ Environment in which it is difficult to receive
a radio signal P.106
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■ Radio signal reception range: the Peopleʼs Republic of China (BPC)
The reception range from the transmitting station is approximately 1,500 km (1,500
km radius of the transmitting station).
BPC is operated by NTSC.
Shangqiu National Time Service Center
Frequency: 68.5kHz
※ NTSC: National Time Service Center
※ The watch may be able to receive radio
signals outside a reception range if the
receiving conditions are favorable.
※ The watch may fail to receive radio signals
depending on the reception conditions
(weather, geographic locations, radio
disturbances such as tall buildings, and
orientation of the watch).
→ Environments in which it is difficult to
receive a radio signal P.106
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WWVB is operated by NIST.
Fort Collins transmitting station
Frequency: 60 kHz
※ NIST: National Institute of Standards and
Technology
※ The watch may be able to receive radio signals
outside a reception range if the receiving
conditions are favorable.
※ The watch may fail to receive radio signals
depending on the reception conditions (weather,
geographic locations, radio disturbances such
as tall buildings, and orientation of the watch).
→ Environments in which it is difficult to receive
a radio signal P.106
■ Radio signal reception range: the United States of America (WWVB)
The reception range from the transmitting station is approximately 1,500 km (1,500 km
radius of the transmitting station). There are five time zones within the reception range.