Extremely rare French 18k rose gold repeating lever Circa 1809

With fast beating Martin-Pouzait lever escapement by Pierre-Basile Lepaute
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A very fine, extremely rare French 18 carat rose gold open faced quarter repeating pocket watch with fast beating Martin-Pouzait early French lever escapement, circa 1809. Frosted gilt movement (dated May, 1809), fusee and chain, the top plate cut away for the barrel which is held by a separate bridge, fast beating Martin-Pouzait lever escapement with safety action, plate with aperture to view the escapement, three armed brass balance, balance and escape wheel pivots jeweled, blued steel flat balance spring, index regulator, repeating with two polished steel hammers on two gongs activated by depressing the pendant. Gilt metal cuvette. White enamel dial by Lucard with Breguet numerals, outer minute track with Arabic fifteen minute numerals and original blued steel Breguet hands. Case by Amy Gros, mastermark AG below a star in a lozenge, polished back, reeded band, locking bolt for the repeat between 10 and 11 o’clock. Dial, movement and cuvette signed, the case with Paris marks and Amy Gros mastermark, reverse of the dial signed Lucard.
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Diameter: 55 mm
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Signed: Lepaute Hger de l’Empereur à Paris
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The Martin-Pouzait Escapement. Used by French watchmakers in the late 18th and early 19th century as well as English makers such as Recordon, the Martin-Pouzait escapement is a variation of Pouzait’s famous seconds beating lever escapement.
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Pierre-Basile Lepaute (1750-1843), called Sully-Lepaute, along with his son Pierre-Michel (1785-1849) he ran the famous company established in the 1740’s. He was Horloger de l’Empereur during the Empire and Horloger du Roi in the Restoration and the July Monarchy. Under the Empire he supplied clocks to the Garde-Meuble. In 1819 and 1823 he exhibited at the Exhibitions of the Products of the Industry. Clients of Lepaute included Louis XV, Louis XVI, Madame du Barry, Duc de Bourbon, the Princesse of Monaco, King Ferdinand VI, King Charles III and Charles IV of Spain.