9 3/4”’ | Hand Wind | Swiss Lever | Indirect Sweeping Seconds |

Remarks:

• Bifora Movement family:
  • Bifora 91: small seconds
  • Bifora 91 SC: indirect sweeping seconds
  • Bifora 91/1: small seconds, bigger barrel
  • Bifora 91/1 SC: indirect sweeping seconds, bigger barrel

• Listing ID: 6196
• Manufacturer / Brand: Bifora / Dugena
• Caliber: Dugena 2003 = Bifora 91/1 SC
• Size in French Lignes: 9 3/4''
• Size range mm largest diameter: 0 - 22 mm
• Shape: Round
• 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: Bottom (120 - 240°)
• Shock Protection: Bishock
• Beats per hour: 18,000
• Balance Type: Nickel
• Power Reserve: Approx. 44 hours
• Production Period: 1962 - 1980
• Country: Germany
• Identification: Marked with B in a circle and 91/1 under the balance wheel. Marked with Dugena 2003 on the ratchet wheel.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)