Rare Swiss repeater with enamel libertine miniature Circa 1785

Gold and enamel open faced quarter repeater
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A rare and unusual Swiss 18 carat gold and enamel open faced quarter repeating watch with enamel libertine miniature, circa 1785. Gilt finished full plate verge movement, engraved and pierced balance cock, repeating on two hammers onto a bell. Brass cuvette with painted polychrome enamel scene depicting a crowd admiring the hydrogen balloon La Caroline in the air while a young lady is helped to climb up a wall by using the shoulders of a gentleman as a ladder, revealing her bare bottom admired by another group of gentlemen. Engine turned sunburst decorated silvered dial with Roman numerals, blued steel hands with skeletonized gilt arrow tips, outer railway minute divisions. Case with engine turned band, the back with a painted polychrome enamel scene depicting La Caroline over the Parc de Meudon, greeted by an enthusiastic public, small vignette with the painted date 15 Juillet 1784.
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Diameter: 55 mm
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Signed: No name