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Auktionen Dr. Crott 91st Auction

597 596 Robert Brandt & Cie., La Chaux-de-Fonds, Case No. 997, 44 mm, 32 g, circa 1840  A gentleman’s early ultra-thin pocket watch Case: 18k gold, florally engraved back side, signed and florally engraved gold dome. Dial: silvered, lavish floral engravings, eccentric chapter ring with radial Roman numerals, visible gold ring balance with steel mask at “12”, blued spade hands. Movm.: bridge movement, keywind, frosted, gilt, cylinder escapement. Bagnolet Caliber In the bagnolet caliber the movement is inverted and the train reversed. The idea was to make a very thin watch by reducing the thickness of the bridges and the dial and to eliminate the cuvette. Philippe Samuel Meylan is credited with the invention of the bagnolet caliber. Robert Brandt & Cie., La Chaux-de-Fonds — 早期男仕超薄懷錶 40371  C: 2, 10 D: 2 M: 2, 41  3.500 - 4.500 EUR 3.900 - 5.000 USD 31.500 - 40.500 HKD Baudin Frères à Genève / (attributed to) Sylvain Mairet Le Locle, Case No. 655, 47 mm, 62 g, circa 1855  A gentleman’s rare pocket watch with regulator dial, temperature indication in “Reaumur” and date Case: silver, engine-turned, engraved hatchment, florally engraved case band. Dial: enamel, eccentric chapter ring with radial Roman numerals for the hours at “9”, eccentric chapter ring with Arabic numerals for the date at “3”, auxiliary seconds, thermometer sector with Reaumur scale at the top, signed, blued Breguet hands. Movm.: bridge movement, keywind, frosted, gilt, bimetallic steel and brass thermometer curb acing on spring- loaded rack-and-pinion transmission, screw compensation balance, counterpoised lever. The Réaumur temperature scale The Réaumur temperature scale is named after French scientist René Antoine Ferchault de Réaumur, who introduced the scale in 1730; its freezing point and the boiling point of water are set to 0 and 80 degrees respectively. Sylvain Mairet Sylvain Mairet grew up with his uncle; F.I. Favre-Bulle was a renowned watchmaker of his period. Mairet was to become one of the best watchmakers in Le Locle. He lived in London from 1831 until 1834 where he struck up a friendship with J.F. Cole and mostly worked for B.L. Vulliamy. He often created the watches to his own design; he invented a keyless winding system for watches with two-train movements (see lot No. 218). Sylvain Mairet was the official Swiss agent to the London Universal Exhibition in 1862 and wrote the official report; he received a gold medal at the 1867 Paris Exhibition “as a testimony to his ability and the beneficial influence which he had exerted on the progress of watchmaking in the Canton of Neuchatel”. Baudin Frères 日內瓦 — 罕見的男仕懷錶,附校準錶盤,”Reaumur” 溫度計及日期顯示 40370  C: 2, 18 D: 2 M: 2, 41  4.000 - 5.000 EUR 4.400 - 5.500 USD 36.000 - 45.000 HKD