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Seiko 8420-6499
The Seiko 8420-6499 watch movement incorporates a sweep seconds feature, allowing for accurate timekeeping beyond the minute. It operates through an automatic mechanism, eliminating the need for manual winding. Additionally, it incorporates a day and date display function for enhanced convenience and functionality.
The Seiko 8420-6499 features the following functions:
- Automatic Winding
- Day and Date Display
- 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
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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 |
|---|---|---|---|
| CROWN, YELLOW T45 X 35 X 58 | 130Y/MID | 130Y/MID | Buy part |
| STEM, MALE OA 8.15 (HELICOIL) | 360/497 | 404/ETA 2802 | Buy part |
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