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Seiko 8420-7429
The Seiko 8420-7429 watch movement features an adjustable stud holder for precise regulation, shock protection for increased durability, an automatic winding system, the absence of a second hand, sweep seconds functionality, and a beat rate of 21,600 vibrations per hour.
The Seiko 8420-7429 features the following functions:
- Adjustable Stud Holder
- Automatic Winding
- Shock Protection
- Sweep Seconds
- Without Second Hand
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
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