Seiko 2202 Movement Details

Seiko caliber 2202 is a hand winding watch movement.
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Day / date?Date only
GMT / world time?No
Chronograph?No
Rate:28,800 bph
Number of jewels:17, 21 or 23
Lift angle:48º
Size / diameter:17.2mm
Height:3.8mm
Stem code: 351221 (short), 351222, 372220 (movement side), 373250 (crown side)
Balance wheel code: 310220
Mainspring code: 201221
Screw codes: 012121 (stud screw), 012124, 012204, 012207, 012208, 012263, 012280, 012407 (case screw), 012512, 012668, 012670, 012724 (dial screw), 012736, 012750
Development division:Daini (Kameido, Tokyo)
PDF guides: Technical guide : 2202A
Related movements: 2205 2206

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