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

Remarks:

• Chronograph:
  • Mono-pusher
  • Column wheel actuated
  • Central chronograph seconds
  • 30 min counter at 12H

• Listing ID: 12997
• Manufacturer / Brand: Minerva
• Caliber: 9 CH
• 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
• Other Functions: Chronograph
• Jewels: 17
• Setting Lever Screw/Pin Position: Right
• Balance Position: Right (0 - 120°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Screw balance
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1939
• Country: Switzerland
• Identification: Movement marked with RFV (Robert Frères Villeret). Listed in the Classification Horlogère from 1939
• Contributor ©: Uhrforum.de member Opposed
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-70#post-9936865