Seiko 3180 Movement Details

Seiko caliber 3180 is a high grade hand winding watch movement. Production started around 1960.
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Sub-brands: Grand Seiko
Power reserve:45 hours
Day / date?No
GMT / world time?No
Chronograph?No
Hacking?Yes
Rate:18,000 bph
Number of jewels:25
Size / diameter:27.6mm
Height:4.4mm
Stem code: 351572
Balance wheel code: 310640
Mainspring code: 401640
Screw codes: 022150 (stud screw), 022151, 022255, 022259, 022264 (dial screw), 022352, 022451, 022453, 022578, 022652, 022657, 022754, 022854
Development division:Suwa (Nagano)
Notes:This movement powered the first Grand Seiko.
Related movements: 341 430 560 5722 5740

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