Bifora 103 SA old

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13”’ | Automatic | Swiss Lever | Small Seconds |

Remarks:

  • First German automatic movement
  • Bidirectional automatic winding
  • Movement family:
    • Bifora 103: 10 1/2”’, hand winding, small seconds
    • Bifora 103 SC: 10 1/2”’, hand winding, sweeping seconds
    • Bifora 103 SA old: 13”’, automatic, three transmission wheels for automatic
    • Bifora 103 SA new: 13”’, automatic, two transmission wheels for automatic

 

  • Listing ID: 10938
  • Manufacturer / Brand: Bifora
  • Caliber: 103 SA old
  • Size in French Lignes: 13'''
  • 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: 22
  • Setting Lever Screw/Pin Position: Left
  • Balance Position: Bottom (120 - 240°)
  • Shock Protection: Super-Shock-Resist (dial side, original) / Trishock (bridge side, not original)
  • Beats per hour: 18,000
  • Balance Type: Monometallic screw balance
  • Power Reserve: Unknown
  • Production Period: 1951 - 1962 (old + new versions)
  • Identification: Dials side marked with B 103. Listed in the Flume K1 catalog in the part from 1952.
  • Country: Germany
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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