Unitas 6425 = Dugena 3910

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13”’ | Hand Wind | Swiss Lever | Small Seconds | Date |

Remarks:

  • Unitas Movement family (see extra picture):
    • Unitas 6325: Small seconds
    • Unitas 6326: Small seconds, different bridge shapes
    • Unitas 6335: Indirect sweeping seconds
    • Unitas 6336: Indirect sweeping seconds, different bridge shapes
    • Unitas 6420: Indirect sweeping seconds, date
    • Unitas 6421: Indirect sweeping seconds, date, different bridge shapes
    • Unitas 6422: Indirect sweeping seconds, date, day
    • Unitas 6423: Indirect sweeping seconds, date, day, different bridge shapes
    • Unitas 6425: Small seconds, date with quick-setting
    • Unitas 6426: Small seconds, date with quick-setting, different bridge shapes
    • Unitas 6427: No seconds, date, day, bothe with quick-setting
    • Unitas 6428: No seconds, date, day, bothe with quick-setting, different bridge shapes

 

  • Listing ID: 6237
  • Manufacturer / Brand: Unitas / Dugena
  • Caliber: Unitas 6425 = Dugena 3910
  • Size in French Lignes: 13'''
  • 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...: Date
  • Jewels: 17
  • Setting Lever Screw/Pin Position: Right
  • Balance Position: Bottom (120 - 240°)
  • Shock Protection: Incabloc
  • Beats per hour: 21,600
  • Balance Type: Nickel
  • Power Reserve: Unknown
  • Production Period: Unknown, probably around 1972
  • Identification: Marked with UT 6425 under the balance wheel, and with Dugena 3910 on the ratchet wheel. Listed in the Flume K3 catalog from 1972.
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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