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

Remarks:

• Movement family:
  • Unitas 11: height 5.20 mm
  • Unitas 111: height 4.50 mm
  • Unitas 211: height 3.55 mm
  • Unitas 311: height 3.05 mm
  • Unitas 411: height 4.10 mm
• Movement family available with diameters of 17 1/2”’ (17”’ according to manufacturer) and 18 1/2”’

• Listing ID: 18946
• Manufacturer / Brand: Unitas
• Caliber: 411 17'''
• Size in French Lignes: 17 1/2''' (17''' according to manufacturer)
• 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: 18
• Setting Lever Screw/Pin Position: Right
• Balance Position: Right (0 - 120°)
• Holes in setting lever spring or rocking bar: 3
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1935 (Unitas 11 listed in the Ebauches SA catalog from 1935). Listed in the "Official Catalogue of genuine Swiss Watch repair parts" from 1949.
• Country: Switzerland
• Identification: Movement marked with 411 under the balance wheel.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)