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

Remarks:

• 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: 594
• Manufacturer / Brand: Bifora
• Caliber: 103
• 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: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 16
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Super Shock Resist
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Approx. 40 hours
• Production Period: 1941 - 1952
• Identification: Movement marked B 103. Listed in the Flume K1 catalog in the part from 1952.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-57#post-8057503
• Country: Germany
• Contributor ©: Uhrforum.de member buchenhain