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Seiko 1F20-0A80
The Seiko 1F20-0A80 watch movement features an adjustable stud holder, which allows for precise regulation of the balance spring. It does not include a second hand, focusing solely on hour and minute indications. The movement is equipped with a sweep seconds function, which enables a smooth continuous motion of the seconds hand.
The Seiko 1F20-0A80 features the following functions:
- Adjustable Stud Holder
- Sweep Seconds
- Without Second Hand
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
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Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| LOW BALANCE CAP L | 330/E | Buy part | |
| RIVET | 100/2819 | Buy part | |
| SCREW, DIAL FOOT | 5751/E | Buy part | |
| SCREW, LOWER BALANCE CAP JEWEL | 5330/E | Buy part |
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