12 1/2”’ | Automatic | Swiss Lever | Small Seconds |

Remarks:

• Bumper automatic
• Movement family:
  • Langendorf / Lanco 1231: small seconds
  • Langendorf / Lanco 1232: direct sweeping seconds

• Listing ID: 12981
• Manufacturer / Brand: Langendorf / Lanco
• Caliber: 1231
• Size in French Lignes: 12 1/2'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Automatic
• Hands Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 17
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Incabloc
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1950
• Country: Switzerland
• Identification: Movement marked with 1231. Listed in the Flume K2 catalog from 1962.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)