19 1/2”’ | Hand Wind | Swiss Lever | Small Seconds

• Listing ID: 14294
• Manufacturer / Brand: AS
• Caliber: Model No. 421
• Size in French Lignes: 19 1/2'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Setting Lever Screw/Pin Position: Right
• Balance Position: Right (0 - 120°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Approx. 8 days
• Production Period: Unknown, probably around 1921
• Country: Switzerland
• Identification: Registered by A. Schild on 24.02.1921 in the Swiss Official Gazette of Commerce as model no. 421. Model No. 421 is not an official caliber designation, but was used to register the design.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)