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Seiko 7B26 - Specifications

Seiko 7B26
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English
English
60
English
English
61
SPECIFICATIONS
1 Frequency of crystal oscillator 32,768 Hz (Hz = Hertz ... Cycles per second)
2 Loss/gain (monthly rate) Less than ±15 seconds (Except during automatic time setting, when worn on the wrist within
a normal temperature range between 5ºC and 35ºC.)
3 Operational temperature range Between -10ºC and +60ºC
4 Driving systems Step motor (hour and minute hands)
Step motor (second hand)
Step motor (calendar)
5 Power source Secondary battery, 1 piece
6 Duration of operation Approximately 6 months (Fully charged, the Power Save is not activated)
*If the Power Save is activated after it is fully charged, the watch continues to
run for approximately one year and a half.
7 Time setting by receiving a radio signal
Automatic reception (2:00 AM, 3:00 AM, and 4:00 AM; attempts of reception depend on radio
wave receiving conditions.)
*After having received a radio signal, the watch moves depending
on the quartz movement until the next reception. Manual reception is also
possible.
8 IC (Integrated Circuit) Oscillator, frequency divider and driving circuit C-MOS-IC: 3 pieces
*The specifications are subject to change without prior notice for product improvements.

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