17 1/2”’ | Hand Wind | Swiss Lever | Small Seconds

• Listing ID: 20616
• Manufacturer / Brand: Langendorf / Lanco
• Caliber: 51
• Size in French Lignes: 17 1/2''' (18''' according to manufacturer)
• 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: 7
• Setting Lever Screw/Pin Position: Left
• Balance Position: Left (240 - 360°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown
• Country: Switzerland
• Identification: Dial side marked with Langendorf logo. Listed in the Flume K1 catalog in the part from 1947.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)