Seiko 3140 Movement Details
Seiko caliber 3140 is a hand winding watch movement. Production started around 1960.
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| Sub-brands: | Liner |
| Day / date? | No |
| GMT / world time? | No |
| Chronograph? | No |
| Rate: | 18,000 bph |
| Number of jewels: | 21, 23 |
| Size / diameter: | 25.6mm |
| Height: | 3.35mm |
| Development division: | Suwa (Nagano Prefecture, Japan) |
| Related movements: | 402 603 |