AM 422 Predecessor

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10 1/2”’ | Hand Wind | Swiss Lever | No Seconds |

Remarks:

  • Predecessor of AM 422 without setting lever spring. See extra picture of AM 422 with setting lever spring.

 

  • Listing ID: 12083
  • Manufacturer / Brand: AM
  • Caliber: 422 Predecessor
  • 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: None
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date, Day, Month...: None
  • Jewels: 7
  • Setting Lever Screw/Pin Position: Left
  • Balance Position: Bottom (120 - 240°)
  • Shock Protection: None
  • Beats per hour: 18,000
  • Balance Type: Mono-/Bimetallic screw balance with Breguet hairspring
  • Power Reserve: Unknown
  • Production Period: Unknown
  • Country: Switzerland
  • Identification: Similarity to AM 422 listed in Ebauches SA catalog from 1928.
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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