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Seiko 4N20-0450
The Seiko 4N20-0450 watch movement features an adjustable stud holder, shock protection, sweep seconds, calendar function, beat rate of 19800 vph, and 7 jewels.
The Seiko 4N20-0450 features the following functions:
- Adjustable Stud Holder
- Calendar
- Shock Protection
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.070 x 260 x 7.0 mm | GR2857 | 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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