French 18k gold quarter repeating cylinder watch Circa 1807

Gold open faced with ruby cylinder escapement
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A very fine and very rare French, 18K gold, quarter repeating Repetition à Ponts Moyenne with ruby cylinder escapement, circa 1807. Sold to Recordon, on October 17, 1807, for 2,160 Francs. An engine-turned back cover, polished bezel, reeded band. Cuvette with apertures for winding and regulation. Gold dial, secured by a screw, brushed chapter ring with radial Roman numerals, outer dot minute indexes, engine-turned centre. Blued steel Breguet hands. A frosted gilt movement, bridge calibre, blued steel screws, overhanging ruby cylinder escapement, gilt three-arm balance with pare-chute and the top pivot, flat balance spring, index regulator, all-or-nothing repeating with a single hammer on a single gong activated by a pull-and-twist piston in the pendant. Dial and cuvette signed.
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Diameter: 48 mm
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Signed: Breguet  Paris
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The Breguet archives record that this watch was returned for overhaul on December 18, 1827, at the request of Monsieur Alexandre de Bosnovoff.
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Louis Recordon (1756-1826) was a watchmaker originally from Sainte Croix who settled first in Geneva and then in London, he was Breguet’s friend and agent in England, and was responsible for selling approximately 75 of Breguet’s watches to the British, including some to the British Monarchy. He was also one of the first to develop the self-winding watch, and in 1780 was granted “Letters Patent” by King George III, concerning an automatic winding mechanism.