Seiko 290 Movement Details

Seiko calibre 290 is an automatic watch movement. Production started around 1956.
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Sub-brands: Gyro Marvel
Day / date?No
GMT / world time?No
Chronograph?No
Rate:18,000 bph
Number of jewels:17
Size / diameter:28.6mm
Height:6.55mm
Development division:Suwa (Nagano Prefecture, Japan)
Notes:The first Seiko movement to use the "magic lever" winding system.

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