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Auctioneers Dr. Crott 90th Auction

179 178 Bartholony à Paris, Movement No. 8, 46 mm, 75 g, circa 1775 A very fine gold enamel verge pocket watch Case: 18k gold, engraved bezel with applied polychrome opaque and translucent enamel roses, back with engraved stripe pattern, applied enamel roses and military equipment, framed by a blue translucent enamel ribbon and bow; diamond thumb piece, diamond-set pendant, large lateral hinge. Dial: enamel, radial Roman hours, gold Louis XVI hands. Movm.: full plate movement, keywind, firegilt, signed, chain/fusee, squared baluster movement pillars, three-arm brass balance, fine florally engraved and pierced balance bridge. Bartholony 巴黎 — 極精緻的黃金琺瑯軸式懷錶 39454 C: 2, 16 D: 2, 31 M: 2, 41 6.000 - 9.000 EUR 7.500 - 11.300 USD 60.000 - 90.000 HKD Julien Le Roy à Paris, 43 mm, 72 g, circa 1750 A very fine, rare gold enamel verge pocket watch Case: 18k rose gold, engraved gold bezel with a green patterned enamel rim, back with polychrome enamel cartouche: a courtly couple in period costumes and a moor who is eavesdropping on them; frame decorated with volutes, green patterned background. Back inner lid with polychrome bouquet of flowers; large outer hinge. Dial: enamel, radial Roman hours, Louis XVI hands. Movm.: full plate movement, firegilt, signed, chain/fusee, square baluster pillars, three-arm steel balance, fine florally engraved and pierced balance bridge. Julien Le Roy He was one of the most outstanding clock- and watchmakers of his time and certainly played a decisive part in establishing the leading role French clockmaking had in the 18th century. He became a master in 1713, presented an equation clock to the Académie Royale des Sciences in 1717, and was appointed clockmaker to the king in 1739 (with his own rooms at the Louvre). Le Roy invented the adjustable bracket for the verge escapement wheel (“potence”), the repetition strike on springs instead of bells for pocket watches, and the “all-or-nothing” piece for repeating watches. His inventions and improvements were of such extreme impor- tance that most watchmakers adopted them promptly for their own pieces. Later Le Roy was director of the Société des Arts; he and his son supplied the entries on watches and clocks in the encyclopaedia compiled by Diderot and d’Alembert. Julien Le Roy 巴黎 — 極精緻,罕見的黃金琺瑯軸式懷錶 39673 C: 2 D: 2, 33, 51 M: 2, 41 6.000 - 8.000 EUR 7.500 - 10.000 USD 60.000 - 80.000 HKD

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