French 20K gold enamel quarter repeating watch Circa 1750

Gold and enamel decorative quarter repeating watch
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A French François Jolly decorative pocket watch, dumb quarter repeater à toc and à tact, en pâte technique enamel fleurs, à relief décor; 20 Carat yellow gold and enamel, circa 1750. 20 Carat yellow gold and enamel, open faced, keywinding, round shaped, Louis XV pocket watch, with white enamel dial and dumb quarter repeater à toc and à tact. Case back and bezel polychrome enamelled with fleurs à relief décor in en pâte technique on green flinqué enamel (translucent enamel over guilloché engine-turning) background, in the manner of Louis François Aubert (1721-1755).
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Diameter: 47 mm
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Weight: 105 g
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Signed: François Jolly
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Jolly, François-Antoine, Paris, Parisian watchmaker received as Master in 1747, active place Dauphine. Seems to have died prematurely in 1752.