Seiko 2220 Movement Details
Seiko calibre 2220 is a hand winding watch movement. Production was in the 1970s.
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Sub-brands: | Chariot, Socie |
Day / date? | No |
GMT / world time? | No |
Chronograph? | No |
Hacking? | No |
Rate: | 28,800 bph |
Number of jewels: | 17, 21 or 24 |
Lift angle: | 48º |
Size / diameter: | 17.2mm |
Height: | 3.3mm |
Development division: | Daini (Kameido, Tokyo, Japan) |
PDF guides: | Technical guide : 2220A |
Part Codes
Stem code: | 351221 (short), 351222 |
Balance wheel code: | 310222 |
Mainspring code: | 201222 |