Seiko 0634 Movement Details
Seiko caliber 0634 is a digital watch movement. Production started around 1975.
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Sub-brands: | LC, SQ |
Battery: | SR43W / 386 (Silver oxide) |
Accuracy: | ±10 seconds/month |
Day / date? | No |
GMT / world time? | No |
Chronograph? | Yes |
Alarm? | No |
Rate: | 32,768 Hz |
Size / diameter: | 27.0mm |
Height: | 8.5mm |
Development division: | Suwa (Nagano Prefecture, Japan) |
Notes: | The world’s first chronograph digital watch. |
PDF guides: | Technical guide : 0634A |
Related movements: | 0674 |