AS 1781

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8 3/4”’ | Hand Wind | Swiss Lever | Direct Sweeping Seconds | Date |

Remarks:

  • Date fast setting by alternating 21:30-24:00
  • Movement family:
    • AS 1780: Hand winding
    • AS 1781: Hand winding, date
    • AS 1782: Automatic
    • AS 1783: Automatic, date

 

  • Listing ID: 3369
  • Manufacturer / Brand: AS
  • Caliber: 1781
  • Size in French Lignes: 8 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...: Date
  • Jewels: 21
  • Setting Lever Screw/Pin Position: Right
  • Balance Position: Right (0 - 120°)
  • Shock Protection: Incabloc
  • Beats per hour: 21,600
  • Balance Type: Nickel
  • Power Reserve: Approx. 38 hours
  • Production Period: Unknown, probably around 1970
  • Identification: Marked AS 1780/83 under the balance. Listed in the 1972 Flume K3 catalog.
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-20#post-3155675
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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