| Type | Private |
|---|---|
| Industry | Watch manufacturing |
| Fate | Bankruptcy |
| Founded | 1976 by Jean Bouchet-Lassale |
| Headquarters | Geneva, Switzerland |
| Key people | Jean Bouchet-Lassale, founder; Pierre Mathys, watchmaker |
| Products | Prestige watches |
Jean Lassale is a Swiss watch company that designed the thinnest mechanical watch movement : 1.2 mm. It is the Calibre 1200.[1]
In the years 1970, Pierre Mathys,[2] master watchmaker in La Chaux-de-Fonds, designed and built the prototype of a revolutionary watch caliber, with the goal of making the thinnest watch in the world.
To do this, he used ball bearings in the movement. The idea came from the work of Robert Annen [3] [4] [5] , who around the year 1950 had the idea of using ball bearings in small scale horology.
Pierre Mathys decided to remove bridges and conter-pivot, and use the ball-bearings for the axis.
The result was the Calibre 1200.
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The calibre 1200, with its automatic version the Calibre 2000, were first presented at the Foire Internationale de l’Horlogerie in Basel in April 1976.[6]
This mechanical, handwound movement has a diameter of 20.4 mm, and a thickness of 1.2 mm. There is an automatic version which is 2.08 mm thick).
It holds 14 ball-bearings. Each one uses 0.20 mm balls. These ball-bearings are inserted in a platine which is 1.2 mm think. Its frequency is 21,600 Alt/H, and its power reserve is 35 hours. It has 11 jewels.
The calibre 1200 (and its automatic version 2000) were built from 1976 to 1979 in the factory that the company Bouchet-Lassale SA had built on 30, rue des Voisins in Geneva, Switzerland. The gold cases came form the « Ateliers réunis », a company also located in Geneva.
The patent for this watch movement was applied in Switzerland on 1976, February 18. It was then applied in the USA on January 2, 1979 under the code US4132061A.[7] The Abstract of the patent is :
An extra-thin manually or automatically wound watch movement in which at least one wheel is pivoted in an overhang position by means of a singe-race miniaturized ball bearing.[8]
Robert Annen was a Swiss engineer. He filed about 75 patents[9] linked to horology and aeronotics, but not only. Some on his own name, some under the names of companies like "ROULEMENTS A BILLES MINIATURES", "LOUIS MULLER ET CIE S A FABRIQUE", "PARECHOC SA [CH] ; ROCHAT FRERES S A".
For the company "ROULEMENTS A BILLES MINIATURES" (Miniature Ball Bearing), he applied 17 patents.
A list of his patents includes :
The company Bouchet-Lassale was founded by Jean Bouchet-Lassale[23] on 8 October 1976.[24]
The company won several awards with its watches [25]:
In 1978-79, a collaboration starts between Bouchet-Lassale SA and Omega, through Lemania-Lugrin SA, L’Orient, which were both units of the SSIH Group (Société Suisse pour l’Industrie Horlogère, which does not exist anymore today). So, Lemania–Lugrin SA built calibres 1200 and 2000, Omega owning a non-exclusive license for the production and the sale of those movements.
In Septembre 79, Bouchet-Lassale SA met some financial difficulties, and the production was stopped. In December of the same year, Claude Burkhalter, then the director of Lemania-Lugrin SA, declares during an internal meeting that « Omega has the possibility to buy the Jean Lassale brand ». But Jean Lassale is bought by Seiko, while the technical documents and the patents are bought by Claude Burkhalter, at the same time as he creates the company « Nouvelle Lemania SA ». Founded in 1982, this company will continue the activities of Lemania-Lugrin SA, and it will produce from the beginning the successors of the calibers 1200 and 2000 : the calibers 1210 and 2010 Lemania. Those calibers will be sold exclusively to Piaget SA, as long as this company will stay independent. When Piaget went under the control of Cartier, this exclusivity was released, and Nouvelle Lemania SA could then sell the calibers to different watch companies, among them Vacheron Constantin.
At Vacheron, the Caliber 1200 is called 1160, and the automatic movement is called 1170.
The company Bouchet-Lassale filed some patents :
The Jean Lassale SA company was excluded from the Swiss Chamber of Commerce on 10 April 2006,[26] following the bankruptcy that was declared by the Tribunal de Première Instance dated 23 June 2003. The company's last CEO was Mr Hagiwara Yasunori.