|Diameter:||29.5 mm (13 ligne)|
|Complications:||2-Button, 9-Column Chronograph, Chronograph, Column Wheel Chronograph, Date, Day, Month, Quick Date Correction, Quick Day Correction, Quick Month Correction|
|Hands:||12 Hour Chronograph Hand at 6:00, 30 Minute Chronograph Hand at 3:00, Central 60 Second Chronograph Hand, Central Date Pointer, Central Hour Hand, Central Minute Hand, Day Window at 11:30, Month Window at 12:30, Small Seconds Hand at 9:00|
|Production: 1946 – 1974|
The Valjoux 72C is a “triple date” hand-winding chronograph movement in the Valjoux 72 family. Cal. 72C was introduced around 1946 and produced through 1974. Cal. Valjoux 723 is similar. Cal. Valjoux 88 adds a moon phase disc at 6:00. Cal. 72C was replaced by Cal. Valjoux 730 in the 1970s.
The Valjoux 23C and 72C are almost identical except that the latter adds a 12 hour counter at 6:00 on the dial. This function is powered by a gear on the dial side of the movement which tends to wear over time.
While all Valjoux 72C movements feature inset pushers at 8:30 and 10:00 to advance the calendar functions, only later versions can advance the day using a half-push of the pusher at 10. Cal. 72C also came with either flat or Breguet hairsprings with different regulators.
- Central hours and minute hands
- Central chronograph seconds
- Central date by pointer
- 30 minute counter at 3:00
- 12 hour counter at 6:00
- Date corrector at 8:30
- Running small seconds at 9:00
- Day and Month corrector at 10:00
- Day window at 11:30
- Month window at 12:30
The Valjoux 72C was used by many brands, notably including Anonimo, Baume & Mercier, Bovet, Breguet, Breitling, Certina, Doxa, Eberhard & Co., Enicar, Eterna, Franck Muller, Gallet, Girard-Perregaux, Heuer, Jaeger-LeCoultre, Longines, Minerva, Nivada, Ulysse Nardin, Universal Genève, Wakmann, Wittnauer, and Zodiac.
No Hour Counter
No Hour Counter
|Base||Valjoux 23||Valjoux 72|
|Valjoux 236||Valjoux 726|
|Flyback||Valjoux 230||Valjoux 720||Valjoux 235||Valjoux 725|
|Triple Date||Valjoux 69|
|Valjoux 23C||Valjoux 723|
|Flyback and Date||Valjoux 237|
|24 Hour Hand||Valjoux 724||Valjoux 729|
|Calendar and Moon Phase||Valjoux 89|
|Valjoux 88||Valjoux 886|
|Tide Calculator||Valjoux 721|