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Cal. |
7B75 |
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1. Features |
Basic watch with three hands (Hour, minute and seconds hands), date display |
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2. Frequency of crystal oscillator |
32,768 Hz (Hz= Hertz, cycles per second) |
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3. Loss/gain (Monthly rate) |
Loss/gain ±15 seconds in a monthly rate (Except the cases when the watch is used without time adjustment by receiving a radio signal and when it is worn on the wrist within a normal temperature range between 5 °C and 35 °C) |
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4. Operational temperature range |
Between −10 °C and +60 °C |
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5. Driving system |
Step motor (Hour and minute hands, seconds hand, and the date) |
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6. Power source |
Secondary battery, 1 piece |
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7. Duration |
Approximately 9 months (Fully charged, and the Power Save is not activated) If Power Save is activated after it is fully charged, the watch continues to run for approximately 2 years at maximum. |
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8. Radio signal reception function / radio signal transmitting station |
Automatic reception (Before 2:00 AM, 3:00 AM and 4:00 AM) It varies depending on the radio signal receiving condition. After radio signal reception, the watch will start to work depending on the quartz movement until the next reception. Manual reception is available. |
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9. Integrated circuit |
Oscillator, frequency divider, drive and reception circuit: IC, 2 pieces |
The specifications are subject to change without prior notice due to product improvements.