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Seiko 4N20-0790
Ligne: 12'''
The Seiko 4N20-0790 watch movement features a sweep seconds function, allowing for precise timing of seconds. Additionally, it includes a calendar function which displays the date.
The Seiko 4N20-0790 features the following functions:
- Calendar
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
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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 | 182/1375 | Buy part | |
| BARREL ARBOR | 195/1389 | Buy part | |
| CROWN WHEEL | 420/1326 | Buy part | |
| CROWN WHEEL CORE | 422/717 | Buy part | |
| SCREW, SET BRIDGE | 5445/E | Buy part |
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