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Seiko A781-400D
The Seiko A781-400D watch movement features a backwind function, allowing the watch to be wound by turning the crown in the opposite direction.
The Seiko A781-400D features the following functions:
- Reverse Winding
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|
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 |
|---|---|---|---|
| BARREL | 182/932 | Buy part | |
| CLICK/SPRING | 434/95 | 434/95 | Buy part |
| ESCAPE WHEEL, S/S | 705/AP 2005 | 705/AP 2005 | Buy part |
| MAINSPRING | 770/101 (use MS-JA758) | 770/101 | Buy part |
| RATCHET WHEEL | 415/1122 | Buy part | |
| STAFF | 723/1034 | 723/AP 2005 | Buy part |
| STEM | 401/567 | Buy part | |
| STEM SPRING | M/1271 | Buy part |
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