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

Remarks:

• Movement family:
  • AS 1220: 10 1/2”’
  • AS 1221: 11 1/2”’

• Listing ID: 3930
• Manufacturer / Brand: AS
• Caliber: 1220
• 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: Right
• Balance Position: Right (0 - 120°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Screw balance
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1950
• Identification: Marked with 1220/1221 and AS logo on the dial side. Listed in the "Official Catalogue of genuine Swiss Watch repair parts" from 1949 and in the Flume K1 catalog in the 1952 part.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-17#post-2833693
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)