Grail Watch Reference

A Reference Library for Watches from Grail Watch

Valjoux 77

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Valjoux Cal. 77 is a column wheel chronograph movement. Unusually for Valjoux, it has seven columns in the wheel used to control the chronograph function and also uses Heuer’s oscillating pinion engagement design. It is a two-pusher movement with a 30 minute chronograph register. Cal. 77 was produced from 1946 through about 1950. The Valjoux 92 was a descendent of Cal. 77.

Valjoux designed the unusual Cal. 77 with two goals: It implemented the oscillating pinion for use by Heuer, and it replaced many complex milled components with springs to reduce cost.

Valjoux 76R

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Valjoux Cal. 76R is a pocket watch column wheel chronograph movement. Introduced around 1946, it was produced through about 1974 and was exclusive to Heuer. It featured a six-column wheel to control the chronograph function. The chronograph used a central seconds hand with split seconds and had a 30 minute counter. It was a dual-pusher design.

Valjoux 76

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Valjoux Cal. 76 is a pocket watch column wheel chronograph movement. Introduced around 1946, it was produced through about 1974 and was exclusive to Heuer. It featured a six-column wheel to control the chronograph function. The chronograph used a central seconds hand with a 30 minute counter. It was a mono-pusher design.

Heuer also had a split seconds version as well as a special version of Cal. 76 with a central 1/100 minute (decimal) hand.

Valjoux 57

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Valjoux Cal. 57 is a pocket watch column wheel chronograph movement. Introduced around 1946, it was produced at least through the 1940s, possibly exclusively for Heuer. It featured a six-column wheel to control the chronograph function. The chronograph used a central seconds hand with split seconds a 30 minute counter. It was a two-pusher design.

Valjoux 72C

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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.

It is said that about 1,300 examples of Cal, 72C were produced, far fewer than the similar full-calendar Cal. 88.

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.

18,000 A/h
No Chronograph		18,000 A/h
No Hour Counter		18,000 A/h
Hour Counter		21,600 A/h
No Hour Counter		21,600 A/h
Hour Counter
BaseValjoux 23Valjoux 72
Valjoux 722		Valjoux 236Valjoux 726
Valjoux 727
FlybackValjoux 230Valjoux 720Valjoux 235Valjoux 725
DateValjoux 234
Triple DateValjoux 69
Valjoux 78		Valjoux 23CValjoux 723
Valjoux 72C		Valjoux 730
Flyback and DateValjoux 237
24 Hour HandValjoux 724Valjoux 729
Calendar and Moon PhaseValjoux 89
Valjoux 90		Valjoux 88Valjoux 886
Tide CalculatorValjoux 721