La Bisontine 18 3/4''' Lépine Type 3

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18 3/4”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

  • Lépine = open face movement
  • Type 3 is not an official caliber designation. As this is unknown, type <x> is used to distinguish between the different movement types of La Bisontine.
  • The following types are known to date:
    • Type 1: cylinder escapement, keywind, cocks of the fourth wheel and the third wheel are connected
    • Type 2: cylinder escapement, crown winding with pusher, cocks of the fourth wheel and the third wheel are connected
    • Type 3: Swiss lever escapement, crown winding with pusher/lever, cocks of the fourth wheel and the third wheel are connected
    • Type 4: Cylinder escapement, crown winding with pusher, third wheel under the wheel train bridge
  • Common to all types is the cover of the ratchet wheel and a special shape of the click. Types 1, 2 and 3 also have a common cock for the fourth and third wheel
  • There are also 12”’ and 19 3/4”’ Savonnette (hunter) movements of this type 3

 

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