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Seiko 4205B
Ligne: 11.5'''
Jewels: 25
Power Reserve: 36 hrs
Frequency: 18000 vph
Type: Automatic
Period used: 1961-
Diameter: 26 mm
Height: 6.7 mm
Hands: 1.60 x 0.95 x 0.21 mm
The Seiko 4205B watch movement is a detached manual wind movement that was introduced in 1961. It is similar to the Durowe 1162 movement, but with a larger barrel and features Duro-Swing shock protection instead of Duro-Shock. The movement includes functions such as automatic winding and a sweep second hand. The Seiko 4205B movement was utilized from 1961 onwards.
The Seiko 4205B features the following functions:
- Automatic Winding
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 4158 | Durobloc | Buy staff |
| 4158 | Monorex | Buy staff |
| 4158 | Rufarex | Buy staff |
| 4158 | Shockproof | Buy staff |
| 4121 | Unishock | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.080 x 9.0 mm | Auto | 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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