Swiss 18 carat gold open faced cylinder pocket watch Circa 1830

Gold key wind pocket watch
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A fine and very rare key wind dress watch made by Vacheron in Geneva, Switzerland, circa 1830. The solid open faced case, crafted from 18 carat yellow gold, has a bezel and back rim with vermicelli decoration, a fluted band, an engine turned back and a hinged gilt cuvette. The silver guilloché dial has painted radial Roman hour numerals, outer minute divisions, a center engraved with floral decoration and yellow gold Breguet hands. The gilt brass movement is fitted with four jewels, a cylinder escapement, three arm steel balance and blued steel flat balance spring. The cuvette signed is signed.
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Diameter: 40 mm
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Signed: Vacheron à Genève