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Seiko 1F20-0H00
The Seiko 1F20-0H00 watch movement features a sweep seconds function, which allows for the smooth and continuous movement of the seconds hand around the dial.
The Seiko 1F20-0H00 features the following functions:
- Sweep Seconds
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.25 x 0.080 x 240 x 7.0 mm | GR3082 | Manual | Buy mainspring |
| 1.20 x 0.080 x 240 x 7.0 mm | GR2870 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| BALANCE COMPLETE | 721/1482 | Buy part | |
| MAINSPRING 1.20-.08-240 7 | MS-313E | GR 2870 | Buy part |
| PALLET (17J) | 710/1074 | 59A/BUL 6AH | Buy part |
| PALLET FORK, S/S | 710/285 | Buy part | |
| ROLLER, GENUINE | 730/31 | /PES 336N | Buy part |
| STAFF, GENUINE | 723/759 | Buy part | |
| STAFF, GENUINE SHOCK | 723/1017 | 728/AUR 46 | Buy part |
| STEM, GENUINE | 401/424 (use 200/515F) | 401/424 | Buy part |
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