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Seiko 8420A
Ligne: 11.5'''
The Seiko 8420A watch movement features an adjustable stud holder, sweep seconds hand, and calendar functionality.
The Seiko 8420A features the following functions:
- Adjustable Stud Holder
- Calendar
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.120 x 320 x 9.5 mm | GR2973 | Manual | Buy mainspring |
| 1.20 x 0.130 x 300 x 9.5 mm | GR2988 | 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
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