Seiko 6220 Movement Details

Seiko caliber 6220 is a hand winding watch movement. Production was in the 1960s.
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Sub-brands: Skyliner
Day / date?No
GMT / world time?No
Chronograph?No
Rate:18,000 bph
Number of jewels:17 or 21
Lift angle:54.5º
Size / diameter:25.6mm
Height:3.35mm
Stem code: 351623
Balance wheel code: 310620
Mainspring code: 401620
Screw codes: 022150 (stud screw), 022253 (dial screw), 022258, 022266, 022351, 022354 (case screw), 022356, 022551, 022653, 022657, 022750, 022752
Notes:Same as cal. 6222 but without date display.
Related movements: 6222