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Landeron 254
Jewels: 15
Power Reserve: 33 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1899-1903
Diameter: 45.75 mm
Height: 10.1 mm
Hands: 2.46 x 1.27 / 0.30 mm
The Landeron 254 watch movement, produced between 1899 and 1903, encompasses a total production of 4600 units. This open face calibre operates with a model 5 configuration, featuring a bimetallic screw balance and a Breguet hairspring. Notably, it has a ratchet positioned beneath the base plate and employs a negative stem mechanism with a rocker bar. Its functionality includes stem winding, switchable by the crown or lever, as well as a sub-second hand.
The Landeron 254 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 |
|---|---|---|---|
| 2.92 x 0.229 x 570 x 17.5 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) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| SETTING LEVER | 5260/ELG | 5260/ELG | Buy part |
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