Julien Le Roy à Paris, No. 3896, made by his son Pierre, circa 1764. Fine and rare 18 ct. gold watch with the fusee renversee invented by Monsieur Le Roy. | 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 69

Julien Le Roy à Paris, No. 3896, made by his son Pierre, circa 1764. Fine and rare 18 ct. gold watch with the fusee renversee invented by Monsieur Le Roy.

CHF 12,000 - 15,000

Sold: CHF 18,400

C. Double body, Louis XV, engine-turned in a basket-work pattern. D. White enamel with Roman numerals and outer Arabic minute ring. Gold Louis XV hands. M. Hinged gilt brass, full plate with baluster pillars, upside-down fusee with chain, verge escapement, plain steel three-arm balance, flat balance spring, gilt brass continental cock pierced and engraved with the initiais "J.L.R." standing for Julien Le Roy, polished steel endpiece. Signed on the dial and the back plate. In very good condition. Diam. 47 mm.

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Notes

Although signed "Julien Le Roy", this watch \vas made by his son Pierre after his death (the cock pierced and engraved "J.L.R." Kvas used by Pierre Le Roy after the death of his father). The invention of the fusee renversée was due to Jean Baptiste Le Roy, the second son of Julien and a member of the Académie Royale des Sciences The invention is recorded in Mémoires de l'Académie Royale des Sciences for 1763. See Ch. Allix and G. Brusa : Antiquarian Horolo; y, June 1968 and June 1972. (off-print copies are coming with the watch).