8 3/4 x 12 1/2”’ | Hand Wind | Swiss Lever | Small Second |

Remarks:

• A Marc Favre movement with the same size is listed in the Flume K2 catalog from 1962 as caliber 768, but without picture

• Listing ID: 21279
• Manufacturer / Brand: Marc Favre / Alpina
• Caliber: Marc Favre Model No. 23 = Alpina 157
• Size in French Lignes: 8 3/4 x 12 1/2'''
• Size range mm largest diameter: 31 - 40 mm
• Shape: Form
• 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: Left (240 - 360°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance
• Power Reserve: Approx. 40 hours
• Production Period: Unknown, probably around 1928
• Country: Switzerland
• Identification: Watch dial marked with Alpina, movement marked with 157. Registered by Marc Favre on 21.07.1928 in the Swiss Official Gazette of Commerce as model No. 23. Model No. 23 is not an official caliber designation, but was used to register the design.
• Contributor ©: Anonymous