USA
EUR
JPN
28 29
WW
8. Reception Area Guidelines
This watch can receive standard time radio waves broadcast from Japan (two
transmitters), the USA and Europe (Germany).
The standard time radio wave to be received can be changed by selecting the city in
another region.
The maps show the approximate reception areas. However, note that the radio wave
condition could change due to factors including the weather (such as lightning) and
changes in the season or sunrise/sunset time.
The reception area on the map is only guideline, and it may be difficult to receive the
radio signal even within the areas indicated on the map.
Standard time
radio signal
Transmitter Frequency
JJY
Japan
WWVB
USA
DCF77
Germany
Ohtakadoya-yama Standard Time Transmitter
(Fukushima Transmitter)
Hagane-yama Standard Time Transmitter
(Kyushu Transmitter)
Fort Collins Transmitter, Denver, Colorado
Mainflingen Transmitter, Southeast Frankfurt
The standard time radio wave this watch uses is broadcast almost continuously 24-hours
a day, but may occasionally be interrupted for maintenance.
Even if reception of the standard time radio signal has failed, the watch will continue to
be accurate to within ±15 seconds per month.
40 kHz
60 kHz
60 kHz
77.5 kHz
