8 3/4”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• Escapement wheel on the bridge side with cap jewel
• Movement family:
  • Marvin 310: small seconds
  • Marvin 310 SC: sweeping seconds

• Listing ID: 3483
• Manufacturer / Brand: Marvin
• Caliber: 310
• Size in French Lignes: 8 3/4'''
• Size range mm largest diameter: 0 - 22 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Marvin specific (bridge side only)
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1947
• Identification: Listed in the Flume K1 catalog in the 1947 part and in the Classification Horlogère of 1949.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-24#post-3472019
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)