Seiko M158 Movement Details
Seiko caliber M158 is a digital watch movement. Production was in the 1970s.
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| Battery: | SR1130W / 389 (Silver oxide) |
| Accuracy: | ±10 seconds/month |
| GMT / world time? | Yes |
| Chronograph? | No |
| Rate: | 32,768 Hz |
| Development division: | Suwa (Nagano Prefecture, Japan) |
| Related movements: | M154 M159 |