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Seiko 8420-5950
The Seiko 8420-5950 is a mechanical watch movement that incorporates automatic winding functionality. It features a sweep seconds hand, operating at a beat rate of 21600 vibrations per hour. The movement is equipped with 17 jewels, which serve to minimize friction and enhance its long-term performance.
The Seiko 8420-5950 features the following functions:
- Automatic Winding
- Sweep Seconds
Balance Staff Listing
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Mainspring Listing
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Incabloc Part Listing
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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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