Many people who own a mechanical chronograph wear the work of Edmond Capt without knowing his name. On Thursday 17 September 2026, at the Musée international d'horlogerie in La Chaux-de-Fonds, the museum presented him with the Gaïa Prize in the Craftsmanship-Creation category. Capt designed the Valjoux 7750 in the early 1970s, an automatic chronograph movement that went on to power watches from a long list of Swiss brands.
The Gaïa Prize has been awarded since 1993 and is often described as the Nobel Prize of the watch world, according to La Télé. This year's laureates were announced in August: Capt, Gaetano Mileti for History-Research and Jean-François Mojon of Chronode for Entrepreneurship. The Horizon Gaïa grant went to Aurélie Sené and Clément Thomas for Lycosa, a watch project for mountain sports.
A boy from the Vallée de Joux
Capt was born in 1946 in Le Brassus, in the Vallée de Joux, the Swiss valley whose workshops have long supplied the most complicated watches. The museum's press kit says he trained for four years at the valley's watchmaking school as a developer of movements and prototypes, then took a diploma in microtechnical engineering at the engineering school in Geneva.
He worked in movement design at Rolex in 1969, and in 1970 joined Valjoux, first as a designer and later as head of its technical office. That move set the course of his career.
The 7750
A chronograph is a watch that doubles as a stopwatch, and it is among the harder things to build well. At Valjoux, between 1970 and 1972, Capt developed an automatic chronograph with a day-date display, based on the earlier Valjoux 7733. His key decision was to use levers and a cam in place of a column wheel, the traditional and costly part that controls the start, stop and reset of the stopwatch. That choice cut both cost and production time. According to the museum he worked with the watchmaker Donald Rochat, and, unusually for the period, he designed with the help of a computer.
Surviving the quartz crisis
The timing could hardly have been worse. Cheap quartz watches were reshaping the industry, and production of the new movement stopped. The museum records that it was made from 1973 to 1975. WatchTime reports that Capt was ordered to destroy everything related to the project but kept the drawings and tools. That account is reported rather than documented, and it should be read as WatchTime's version of events.
What is clear is that the 7750 came back in the 1980s, when mechanical watches began to regain their appeal. The museum says it was relaunched in 1985 as the ETA 7750, while WatchTime places the revival in the early 1980s, and it cites Breitling's Chronomat of 1984 and IWC's Da Vinci perpetual calendar chronograph of 1985 as early users. The same source lists Omega, Longines, Tissot and Hamilton among the brands that have used it. Its low cost and robust build made it the practical choice for brands that wanted a reliable automatic chronograph without developing their own.
More than thirty calibres
The 7750 is only part of the record. From 1978 Capt worked at Frédéric Piguet, first as head of the technical office and then as technical director. Piguet supplied movements to Blancpain, Vacheron Constantin, Chopard, Breitling, Cartier, Ebel and Audemars Piguet. His work there includes the ultra-thin FP 951 automatic of 1983, and the 1180 of 1988 and 1185 of 1989, chronograph calibres with a vertical clutch. The museum also credits him with the 1186.
In the early 1990s he was technical director at Nouvelle Lémania. He returned to Frédéric Piguet as general director in 1995 and ran it until 2010. Along the way he sat on the executive board of the Swatch Group, led Nouvelle Lemania from 1999 to 2004 and joined the board of Montres Breguet SA.
His later calibres move up the scale of difficulty. They include the 2322, used in the Blancpain Villeret Tourbillon Carrousel of 2013; the 1932, a chronograph with minute repeater that took six years to develop and involved 17 patent filings; the Blancpain Grande Double Sonnerie; and the calibre 15GSQ. In all, he has designed more than 30 calibres.
An unusual second act
Capt was president of the Société Suisse de Chronométrie from 1997 to 1999, and the society awarded him its gold medal in 2016. The museum's biography also notes a human detail. Around 2006 to 2010 he ran the kitchen of the Restaurant Chez la Marie in La Cure, together with his wife and daughter. From 2007 to 2018 he worked as an independent research and development consultant to the Swatch Group, for Blancpain, Breguet and ETA.
The museum only paraphrases his own account of his work, saying that design as a constructor was what fascinated him most.
What the jury said
The Gaïa jury honoured him, according to La Télé, for his creative energy and his ability to answer the technical challenges of mechanical watchmaking. The museum's press kit adds that it recognises his inexhaustible creative force and the large industrial impact of his many calibres.
Why it matters in the Gulf
Many of the brands sold in the Gulf, among them Breitling, IWC and Omega, have used movements in the 7750 family, according to WatchTime. The watch on a collector's wrist may therefore carry a movement drawn by a man whose name was never on the dial. Dubai Watch Week, which takes place in November, is a natural place for Gulf collectors to look more closely at the engineering inside their watches.
Capt, who was born in 1946 and is now 79 or 80, is a reminder that in watchmaking the most widely used inventions are often the least advertised, and that a good idea can wait out a crisis in a drawer.
Sources: Musée international d'horlogerie, La Télé, WatchTime