Seiko 0531 Movement Details
Seiko caliber 0531 is a digital watch movement. Production was in the 1970s.
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| Battery: | SR41W / 325 (Silver oxide) |
| GMT / world time? | No |
| Chronograph? | No |
| Rate: | 32,768 Hz |
| Development division: | Daini (Kameido, Tokyo, Japan) |