Le Bon à Paris, circa 1720. Fine and rare, ebonised pear-wood veneered longcase regulator with Equation sans courbe. | L\'ART DE L\'HORLOGERIE EN FRANCE DE XVIe AU XXe SIÈCLE | Geneva, Hotel Des Bergues, 14th November 1993

L\'ART DE L\'HORLOGERIE EN FRANCE DE ...

Geneva, Hotel Des Bergues, Nov 14, 1993

LOT 55

Le Bon à Paris, circa 1720. Fine and rare, ebonised pear-wood veneered longcase regulator with Equation sans courbe.

CHF 60,000 - 70,000

C. Shaped with brass stringing inlaid borders, applied ormolu acanthus leaves, fleurons and further decoration. D. Brass chapter-ring with Roman numerals and outer Arabic minute ring, inner subsidiary seconds below "XII". Silvered inner dial plate engraved with the equation ring and central brass revolving equation disc. Bluedsteel hands. M. Brass rectangular weight driven with Huygens endless rope, turned conical pillars, anchor escapement, seconds beating pendulum with spring blade suspension. Signed on the dial. In good condition. Dim. 207 x 45 x 22 cm.

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Charles Le Bon, born in Bordeaux in 1678.He married Charlotte Ledart in 1707, and established his business at Place Dauphine in the same year. Also appointed Marchand Horloger Privilegie du Roi on 7 May 1707 after the resignation of Pierre Ducorroy. He was Horloger de 1'Academie des Sciences and presented several inventions to this august body including this system for equation work. He died after 1678. This early type of manually set equation of time system, invented by Le Bon, is described by Thiout I' Aîné in his Traité d'horlogerie, pp. 279- 280, pl. 28, (photocopies will be furnished with the clock).