Bifora 104 = Dugena 976

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

Remarks:

  • Movement family:
    • 104: Hand winding
    • 104 CLD: Hand winding, date
    • 104-112: Automatic
    • 104-112 CLD : Automatic, date

 

  • Listing ID: 7356
  • Manufacturer / Brand: Bifora / Dugena
  • Caliber: Bifora 104 = Dugena 976
  • 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: 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: Bifora Bishock
  • Beats per hour: 18,000
  • Balance Type: Monometallic screw balance
  • Power Reserve: Approx. 40 hours
  • Production Period: 1952 - 1962
  • Identification: Movement marked with B 104 under the balance wheel, and with Dugena 976 on the ratchet wheel.
  • Country: Germany
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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