Seiko 4502 Movement Details

Seiko caliber 4502 is a high grade hand winding watch movement. Production started around 1968 and production finished in 1973.
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Sub-brands: King Seiko
Day / date?Date only
GMT / world time?No
Chronograph?No
Hacking?Yes
Rate:36,000 bph
Number of jewels:25
Size / diameter:27.0mm
Height:3.5mm
Stem code: 354452
Balance wheel code: 310451
Mainspring code: 401450
Date wheel code: 801450
Screw codes: 012128 (stud screw), 012204, 012208, 012223, 012226, 012276, 012408, 012645, 012720 (dial screw), 012721, 012730 (case screw), 012735, 012741
Development division:Daini (Kameido, Tokyo)
Related movements: 4500 4520 4522 4580

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