20”’ | Hand Wind | Swiss Lever | Small Seconds

• Listing ID: 17304
• Manufacturer / Brand: Hahn
• Caliber: Model No. 62 & 90
• Size in French Lignes: 20'''
• 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: 16
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1912
• Country: Switzerland
• Identification: Registered by Charles Hahn on 19.09.1912 in the Swiss Official Gazette of Commerce as model no. 62. And again on 23.02.1922 as model no. 90. Model No. 62 and 90 are not official caliber designations, but were used to register the design.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)