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Sonceboz ES 56
Jewels: 17
Power Reserve: 34 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1916
Diameter: 43.1 mm
Height: 6.65 mm
Hands: 1.65 x 0.92 / 0.25 mm
The Sonceboz ES 56 mechanical watch movement, also known as the open face calibre, model 7, was produced in 1911 with a total of 1000 units. It features a bimetallic screw balance and a Breguet hairspring. The movement incorporates a negative stem mechanism, allowing for the switching between winding and setting with the stem in the lever position. The escapement of the Sonceboz ES 56 has been modified compared to models like 210, offering improved functionality. Additionally, this movement includes stem wind capabilities with switching available via the crown or lever. It also features a sub-second dial. The Sonceboz ES 56 movement was commonly used around the period of 1916.
The Sonceboz ES 56 features the following functions:
- Stem wind, switching by crown or lever
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.64 x 0.190 x 560 x 16.0 mm | 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) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
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