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Seiko 7431-5400
Base: Hanhart 85
The Seiko 7431-5400 watch movement features a timer function.
The Seiko 7431-5400 features the following functions:
- Timer Function
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.70 x 0.210 x 620 x 19.0 mm | GR5129 | 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 |
|---|---|---|---|
| PALLET ARBOR | 72S/197P | 714/VAL 320 | Buy part |
| ROLLER 345X150X60 | 82S/106R | Buy part | |
| STAFF, FRICTION | 100/1551 | Buy part |
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