Osco 52

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8 3/4 x 10”’ | Hand Wind | Swiss Lever | Direct Sweeping Seconds |

Remarks:

  • Rocking bar winding
  • Click on the dial side
  • Movement family:
    • Osco 50: small seconds
    • Osco 52: direct sweeping seconds

 

  • Listing ID: 7619
  • Manufacturer / Brand: Osco
  • Caliber: 52
  • Size in French Lignes: 8 3/4 x 10'''
  • Size range mm largest diameter: 22 - 31 mm
  • Shape: Form
  • Winding: Manual (Crown)
  • Hands Setting: Crown
  • Seconds Hand: Sweeping seconds (central seconds)
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date, Day, Month...: None
  • Jewels: 17
  • Setting Lever Screw/Pin Position: Left
  • Balance Position: Left (240 - 360°)
  • Shock Protection: Monorex
  • Beats per hour: 18,000
  • Balance Type: Monometallic screw balance
  • Power Reserve: Unknown
  • Production Period: Unknown, probably around 1952
  • Identification: Movement marked with Osco logo and KAL 52. Listed in the Flume K1 catalog in the part from 1952.
  • Country: Germany
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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