Watch Database
Seiko 4N21-1000
Ligne: 11.5'''
The Seiko 4N21-1000 watch movement features an adjustable stud holder, allowing for precise regulation of the balance wheel. It is equipped with shock protection, ensuring reliable performance and durability in various conditions.
The Seiko 4N21-1000 features the following functions:
- Adjustable Stud Holder
- Shock Protection
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.100 x 300 x 9.0 mm | GR4486 | 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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