Seiko 1020 Movement Details
Seiko calibre 1020 is a hand winding watch movement. Production started around 1964.
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| Sub-brands: | Queen Seiko |
| Day / date? | No |
| GMT / world time? | No |
| Chronograph? | No |
| Rate: | 19,800 bph |
| Number of jewels: | 23 |
| Development division: | Daini (Kameido, Tokyo, Japan) |