Seiko 3140 Movement Details

Seiko caliber 3140 is a hand winding watch movement produced from 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)
Related movements: 402 603