Lorsa 237AT

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10 1/2”’ | Hand Wind | Swiss Lever | Indirect Sweeping Seconds |

Remarks:

  • The movement shown is missing the driving wheel over the third wheel that drives the sweep seconds pinion
  • Movement family:
    • Lorsa 237A: 10 1/2”’, hand winding, small seconds
    • Lorsa 237AT: 10 1/2”’, hand winding, sweeping seconds

 

  • Listing ID: 13065
  • Manufacturer / Brand: Lorsa
  • Caliber: 237AT
  • Size in French Lignes: 10 1/2'''
  • Size range mm largest diameter: 22 - 31 mm
  • Shape: Round
  • Winding: Manual (Crown)
  • Hands Setting: Crown
  • Seconds Hand: Sweeping seconds (central seconds)
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date, Day, Month...: None
  • Jewels: 15
  • Setting Lever Screw/Pin Position: Left
  • Balance Position: Bottom (120 - 240°)
  • Shock Protection: None
  • Beats per hour: 18,000
  • Balance Type: Monometallic screw balance
  • Power Reserve: Unknown
  • Production Period: Unknown, probably around 1950
  • Country: France
  • Identification: Marked with the Lorsa logo and 237A on the dial side. The normal 237A has a small second, the movement with center second is a 237 AT.
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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