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

Remarks:

• Screw balance after Ditisheim/Guillaume with small bimetallic segments
• Movement family:
  • Solvil & Titus Model No. 4291: Savonnette (hunter) movement
  • Solvil & Titus Model No. 4292: Lépine (open face) movement

• Listing ID: 21235
• Manufacturer / Brand: Solvil & Titus
• Caliber: 42,9 / 42.9 / Model No. 4292
• Size in French Lignes: 19'''
• 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 Elinvar Breguet hairspring
• Power Reserve: Approx. 34 hours
• Production Period: Unknown, probably around 1927
• Country: Switzerland
• Identification: Movement marked with 4292 under the balance wheel. Registered by Solvil on 13.07.1927 in the Swiss Official Gazette of Commerce as model no. 4292. Model No. 4292 is not an official caliber designation, but was used to register the design. Listed as Solvil 42,9 in the 1944 addendum to the Flume catalog from 1942.
• Contributor ©: Anonymous