16 1/2”’ | Hand Wind | Swiss Lever | Small Seconds

• Listing ID: 16401
• Manufacturer / Brand: ARSA
• Caliber: Model No. 2 16 1/2'''
• Size in French Lignes: 16 1/2'''
• Size range mm largest diameter: 31 - 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: 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 1925
• Country: Switzerland
• Identification: Registered by A. Reymond SA (ARSA) on 11.06.1925 in the Swiss Official Gazette of Commerce as model no. 2. Model No. 2 is not an official caliber designation, but was used to register the design. Listed in the Jacob catalog from 1943.
• Contributor ©: Uhrforum.de member buchenhain
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-75#post-10338586