Seiko 1520 Movement Details

Seiko calibre 1520 is a hand winding watch movement.
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Day / date?No
GMT / world time?No
Chronograph?No
Rate:19,800 bph
Number of jewels:17 or 23
Lift angle:53º
Size / diameter:19.8mm x 9.6mm
Height:3.5mm
Development division:Daini (Kameido, Tokyo, Japan)
PDF guides: Parts list : 1520A
Related movements: 15

Part Codes

Stem code: 351152
Balance wheel code: 310150
Mainspring code: 401150
Screw codes: 012102 (stud screw), 012107 (dial screw), 012113, 012207, 012208, 012406, 012549, 012652, 012701, 012802