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Seiko W441-4000
The Seiko W441-4000 watch movement is an automatic mechanical movement featuring Incabloc Shock Protection. It incorporates a sweep seconds function and operates at a beat rate of 28800 vibrations per hour (vph).
The Seiko W441-4000 features the following functions:
- Automatic Winding
- Incabloc Shock Protection
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|
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
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| STAFF, 3 ARM BALANCE | 100/2725 | 00728.2640.BN | Buy part |
| STEM, MALE OA 6.17 | 360/487 | 360/ETA 2640 | Buy part |
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