French gold verge repeater a toc with pearls Circa 1800

Gold verge with enamel portrait of a lady
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Exquisite gold/enamel pocket watch with finest enamel painting and pearls on both sides, Grignon a Paris, circa 1800.
An 18 carat Gold pocket watch, French hallmark, original large, half oriental pearls on the both sides.
Very fine enamel portrait of a lady on the backside, signed and numbered verge escapement with repeater a toc.
Enamel dial, Breguet steel hands, presumably original key, in working order,
very fine collector’s watch.
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Diameter: 38 mm
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Weight: 42 g
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Signed:  Grignon Paris