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Seiko W401-4010
The Seiko W401-4010 watch movement is an American-made mechanical movement.
The Seiko W401-4010 features the following functions:
- American Made
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.90 x 0.220 x 540 x 17.0 mm | GR7121T | T | Buy mainspring |
| 2.90 x 0.225 x 540 x 17.0 mm | GR7124T | T | Buy mainspring |
| 2.90 x 0.210 x 520 x 16.5 mm | GR7111T | T | 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 |
|---|---|---|---|
| MAINSPRING 20-1.5-21 T # | MS-JA701 | GR 7124-T | Buy part |
| MAINSPRING 20-2-21 T | MS-JA702 | GR 7121-T | Buy part |
| MAINSPRING 20-2.5-21 T | MS-JA703 | GR 7111-T | Buy part |
| STAFF, L/WAIST P12 18S | 22BB/30 | 1364/WAL P12 | Buy part |
| STAFF, S/WAIST P12 18S | 22BB/31 | 1365/WAL P12 | Buy part |
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