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Seiko 1F20-0J4H
The Seiko 1F20-0J4H watch movement is an American made mechanical watch movement.
The Seiko 1F20-0J4H features the following functions:
- American Made
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.80 x 0.180 x 640 x 17.0 mm | GR6978TR | TR | 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 |
|---|---|---|---|
| JEWEL, UPPER BALANCE HOLE P12 | CAB 94/WAL | 1784/WAL | Buy part |
| MAINSPRING 2.80-.18-640 17 | MS-JA710 | GR 6978-TR | Buy part |
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