AS 557

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6 3/4 x 11”’ | Hand Wind | Swiss Lever | No Seconds |

Remarks:

  • Visually identical on both sides to AS 525 from the Classification Horlogère of 1936. 525 and 557 possibly differ only by a minimally altered setting lever spring
  • The setting lever spring on the movement shown is broken

 

  • Listing ID: 3710
  • Manufacturer / Brand: AS
  • Caliber: 557
  • Size in French Lignes: 6 3/4 x 11'''
  • Shape: Form
  • Winding: Manual (Crown)
  • Hands Setting: Crown
  • Seconds Hand: None
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date, Day, Month...: None
  • Jewels: 15
  • Setting Lever Screw/Pin Position: Left
  • Balance Position: Right (0 - 120°)
  • Shock Protection: None
  • Beats per hour: 18,000
  • Balance Type: Monometallic screw balance
  • Power Reserve: Unknown
  • Production Period: Unknown, probably around 1936
  • Identification: Dial side marked with AS 557.
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-20#post-3134674
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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