Fine French 18 carat gold double sided verge watch Circa 1760

Gold calendar watch
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An unusual double sided pocket watch with enamel painting and a rare calendar, circa 1760. The very fine open faced case of this watch, crafted from 18 carat gold, has a pink and green gold relief edge and is glazed on both sides. The face shows a polychrome enamel scene, an off center white enamel dial at 12 o’clock with Roman hours, outer minute divisions, outermost Arabic five minute numerals, and gold beetle & poker hands, a further regulating scale below. The back features a patented calendar with an outer black chapter for the days of the week, inner red Arabic numerals for the date and steel hands. The movement is fitted with a verge escapement.
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Diameter: 40 mm
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Weight: 49 g
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Signed: No name
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The inventor of these very rare double sided calendar watches was Jean-Antoine Lépine. Most of these watches are not signed due to the invisible plates.