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You are here: Home / Movements / Valjoux 72c VZHC

Valjoux 72c VZHC

Last Update: June 14, 2019

Brand:Valjoux
Family:
Valjoux 23/72 Family
Height:7.35 mm
Jewels:17
Reserve:48 hours
Frequency:18,000 A/h
Winding:Hand winding
Diameter:29.50 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
Distinguishing Technical Characteristics
Hand-Winding
Clockwise Balance Cock
9-Column Chronograph
Balance
Balance at 12:00
Column Wheel
Column Wheel at 6:00
Production: 1946 – 1974
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s

The Valjoux 72c VZHC (“Valjoux Zähler Heure Calendrier”) 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.

Some sources claim that Cal. 72c measures 6.95 mm thick, the same as Cal. 72 VZH, while others claim 7.25 mm. The latter is more likely, as this movement adds a calendar complication to the base.

Valjoux Triple Calendar Functions

This is a “triple calendar” movement, with day and month shown via disc through dial windows and the date indicated by a central hand.

  • Day of week wheel with window at 11:30, advanced using an inset pusher at 10:00 with a deeper press
  • Month wheel with window at 12:30, advanced using an inset pusher at 10:00
  • Central date hand, advanced using an inset pusher at 8:30

Valjoux does not recommend operating the day, month, or date adjusters between the hours of 20:00 and 2:00. This is to protect the calendar mechanism, which advances at midnight.

Note that the month does not automatically “roll over” with the date. It must be manually set using the inset pusher.

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

Valjoux 72c Applications

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.

Valjoux 23/72 Family Movements

The Valjoux Cal. 23/72 family was primarily made up of eight movements, with all others being variations on these. Many components are shared between most or all of these movements, with the main variations happening together over the long production of the series.

  • Cal. 23 VZ – Basic movement with no hour counter
  • Cal. 72 VZH – Basic movement with hour counter
  • Cal. 72c VZHC – Cal. 72 with triple calendar
  • Cal. 88 VZHCL – Cal. 72c with moon phase
  • Cal. 78 VZSC – Non-chronograph triple calendar
  • Cal. 90 VZSCL – Cal. 78 with moon phase
  • Cal. 69 DX – Compact 10.5 ligne chronograph
  • Cal. 89 DXC – Compact 10.5 ligne triple calendar
Complications18,000 A/h
No Chrono
18,000 A/h
No Hours
18,000 A/h
Hour Counter
21,600 A/h
No Hours
21,600 A/h
Hour Counter
Base23 VZ
69 DX
72 VZH
722
236726
727
Flyback230720235725
Date232234
Triple Date78 VZSC23C72c VZHC
723
730
Flyback and Date237
24 Hour Hand724729
Calendar and Moon Phase89 DXC
90 VZSCL
88 VZHCL886
Tide Calculator721
Images are taken from official publications and are used here for commentary and educational purposes. Copyright is held by the original owner as noted.

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