Volgens mij is het juist andersom? Lasalle heeft het ontwikkeld, anderen waaronder Piaget hebben het ook gebruikt.
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You are correct sir 
Dit was jaren geleden een misvatting en altijd bllijven hangen .
Quote uit de Hodinkee special
Above is the 1.2 mm thick late (and largely unlamented) Jean Lassale caliber 1200, from 1976. In its time it was a technical miracle, and unfortunately, it was a mechanical technical miracle â thanks to the advent of quartz technology â produced at an inauspicious time for a new mechanical movement of any kind, much less a small, incredibly thin, and incredibly problematic one. By 1979 production (by Bouchet-Lassale, named for founder Jean Bouchet-Lassale) had ceased. The name Lassale was bought by Seiko, who put it on the dials of ultra thin quartz dress watches, and the patents were bought by Nouvelle Lemania, who continued the production of the hand-wound caliber 1200 (and ultra thin Lassale automatic caliber 2000) for a few more years before production eventually ceased. Piaget used the Lasalle 1200 as the Piaget caliber 20P, which is the version you see here; Vacheron Constantin also used it, as the Vacheron caliber 1160, and how they managed to get Geneva stripes on them is a matter of wonder; youâd think there wouldnât be any surplus metal left to remove.
De versie van VC
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Ik heb dit horloge ook. Inderdaad zoân 30 jaren geleden gekocht voor ⏠2.000,- gulden. Nu ook niet meer mijn smaak. Geen idee wat de huidige waarde is. Lasalle wordt niet meer gemaakt. Dus collecters item. Hij is ultra dun. Zou hem (nog) niet verkopen. Wordt vast meer waard.
Deze heb ik!