Seiko A129 Movement Details
Seiko calibre A129 is a digital watch movement. Production started around 1977.
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| Battery: | SR1130W / 389 (Silver oxide) |
| Accuracy: | ±15 seconds/month |
| Day / date? | Day + date |
| Chronograph? | Yes |
| Development division: | Suwa (Nagano Prefecture, Japan) |