French diamond-set gold enamel pocket watch Circa 1790

Open faced verge pocket watch by Léchet
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A decorative, diamond-set gold enamel French verge pocket watch, circa 1790.
18 carat gold case with the back lid costly engine-turned and translucent cobalt blue enamelled, a translucent green, gold and blue enamelled, paste-set stylized flower and a diamond in the centre, foliate border and white enamelled bezels. Enamel dial with radial Roman numerals and blued Breguet hands. Full plate movement, firegilt, signed, chain/fusee, conical movement pillars, keywind, three-arm brass balance, engraved and pierced balance bridge.
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Diameter: 46 mm
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Weight: 72 g
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Signed: Léchet à Paris
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literature: G.H. Baillie, “Watchmakers and Clockmakers of the World”, Vol. I, Edinburgh/London, 1947.