•The time calibration signal the watch will attempt to pick up depends on its current Home City code setting as shown below.
| Home City Code | Transmitter | Frequency | |
| LON, | Anthorn (England) | 60.0 kHz | |
| PAR, BER, ATH | Mainflingen (Germany) | 77.5 kHz | |
TYO, SEL | Fukushima (Japan) | 40.0 kHz | |
Fukuoka/Saga (Japan) | 60.0 kHz | ||
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NYC, CHI, DEN, LAX | Fort Collins, Colorado | 60.0 kHz | |
(the United States) | |||
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