18”’ | Hand Wind | Cylinder | Small Seconds |

Remarks:

• Rocking bar winding
• Movement family:
  • AS 600
  • AS 577: technically identical, but different bridge shapes (see extra picture)

• Listing ID: 19033
• Manufacturer / Brand: AS
• Caliber: 600
• Size in French Lignes: 18'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Cylinder
• Date, Day, Month...: None
• Jewels: 10
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Brass
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1928
• Country: Switzerland
• Identification: Dial side marked with ASSA (= AS S. A.). Listed in the Ebauches SA catalog from 1928 (with a slightly different rocking bar).
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)