Jaeger-LeCoultre traces its origin to 1833, when Antoine LeCoultre established his first workshop in the Vallée de Joux, Switzerland. The brand’s history page states that he transformed his family’s small barn into a watchmaking workshop. The site also says the business became the first Manufacture in the Vallée de Joux by bringing watchmaking crafts together under one roof, and that in 1888 it was the most important company in the region according to the industrial statistics of the Canton of Vaud.
The official site documents several technical milestones. It credits Antoine LeCoultre with the Millionometer, described as the first instrument capable of measuring the micron. It also says the Manufacture created what became the world’s thinnest pocket watch with the Knife calibre, and that Calibre 101, launched in 1929, remains the world’s smallest mechanical calibre. The Reverso line is dated to 1931, and the Master Control history page says the launch of the Master Control collection introduced the “1000 Hour Control” testing process.
Collections documented on the site include Reverso, Master, Rendez-Vous, Polaris, Duometre, Calibre 101, Atmos, and Hybris Mechanica. The site presents Polaris in relation to the 1968 Memovox Polaris, Calibre 101 as a line built around the movement introduced in 1929, and Atmos as a clock family linked to the mechanism invented by Jean-Léon Reutter and developed by the LeCoultre & Cie Manufacture.
Jaeger-LeCoultre states that its Manufacture remains in the Vallée de Joux in Switzerland. The Manufacture overview page says it brings together 82 workshops, 108 crafts, and 235 techniques under one roof. The site also states that registered watches can receive an extended warranty of up to 8 years through the Care Program.
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