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)