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Watch Movement - Manual - Valjoux 72C
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NameValjoux 72C
ManufacturerValjoux (Details)
Jewel Count27
Year(s) of Production1938 - 1974
Frequency (vph)18, 000
Power Reserve42
Hand WindingYes

History: The 72–is a classical, manual winding, column wheel, lateral clutch chrono. Today, watchies get all excited about column wheels and vertical clutches, but there’s very little wrong with a lateral clutch. In fact, it’s rather simpler to service. A lot of vertical clutches don’t ever get taken apart so, like 1970s Fords, simply die of old age and neglect.

The 72’s most famous outing was as the engine that powered the Rolex Daytona for nearly 30 years. People often think the Daytona ran either Zenith or Rolex movements, depending on the age of the watch. In fact, the manual 72–first renamed the Rolex 722-1, then the Rolex 727–powered the Daytona from 1961 and the ref. 6239 right the way through to 1988 and the ref. 16520. That’s when it gave way to the automatic 4030 (a Zenith 400 in a Rolex party frock). So that $1.1m Paul Newman you’re lusting after? It’s a humble Val. 72 inside. Admittedly it’s been tweaked a bit with a Breguet hairspring and a Microstella balance, but it’s a Val at heart.
Valjoux (for Vallée de Joux, "Joux Valley") is a Swiss manufacturer of mechanical watch movements. It is known primarily for chronograph ébauche movements that are used in a number of mid- to high-range mechanical watches: The company has been a part of ETA for a number of years and is a member of the Swatch Group.

Valjoux SA was founded in 1901 by the brothers John and Charles Reymond in Les Bioux and until 1929 operated under the name "Reymond Frères SA". The company specialized on chronograph movements. In 1910 it moved to a factory building maintained by the municipality of Les Bioux. The company's famous column wheel chronograph movement, Calibre 22, debuted in 1914 and lasted in production for sixty years. But it was larger than desirable for wrist watch use. The military, involved in the First World War, required reliable bracelet chronographs. Thereafter the 13-ligne chronograph Calibre 23 (diameter 29.33 mm, height 5.85 mm) was developed, which in 1916 came to the production stage and soon ticked in the wristwatches of very different manufacturers (for instance Audemars Piguet, Patek Philippe, Rolex, and Vacheron Constantin). The production lasted nearly sixty years, and until 1974 about 125,000 ebauche movements of this type were made.

Item Links: We found: 1 different collections associated with Manual - Valjoux 72C
Item created by: gdm on 2018-10-11 19:25:50. Last edited by gdm on 2018-10-16 22:10:38

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