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

Remarks:

• Chronograph:
  • Column wheel actuated
  • Central chronograph seconds
  • 30 min counter at 3H
  • 12 h counter at 6H???
  • Small seconds at 9H
  • 2 pushers for start/stop, reset
• Movement family:
  • Valjoux 23 : base movement w/o hour counter
  • Valjoux 230: fly back function
  • Valjoux 23C: calendar (pointer date, day, month)
  • Valjoux 72 : hour counter
  • Valjoux 720: hour counter, fly back function
  • Valjoux 724: hour counter, 24h motion works
  • Valjoux 72C: hour counter, calendar (pointer date, day, month)
  • Valjoux 78 : no chronograph, calendar (pointer date, day, month)
  • Valjoux 88 : hour counter, calendar (pointer date, day, month), moon phase
  • Valjoux 90 : no chronograph, calendar (pointer date, day, month), moon phase

• Listing ID: 21230
• Manufacturer / Brand: Valjoux
• Caliber: 72
• Size in French Lignes: 13'''
• Size range mm largest diameter: 22 - 31 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: Incabloc, none
• Beats per hour: 18,000
• Balance Type: Nickel
• Power Reserve: Approx. 48 hours
• Production Period: 1938+
• Country: Switzerland
• Identification: Movement marked with Valjoux logo (R for Reymond) and 72 under the balance wheel. Listed in the "Official Catalogue of genuine Swiss Watch repair parts" from 1949.
• Contributor ©: Anonymous