Swiss extremely rare gold key wind verge watch Circa 1800

Gold glazed pocket watch
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An extremely rare Swiss 18 carat gold key wind pocket watch, Amphora, circa 1800. The fire gilt vase shaped movement with splendid floral decoration and a verge escapement. A small, white enamel dial on the face with radial Arabic hour numerals, outer minute divisions and blued steel Breguet hands. The high quality case with a reeded band and glazed on both sides.
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Diameter: 52.5 mm
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Weight: 75 g
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Signed: No name
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According to research, only about ten of these watches are known to date.
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An amphora is a classic, bulbous earthenware jug with two handles and a narrow neck, often with a pointed bottom, which was widely used in Greek and Roman antiquity for storing and transporting liquids and goods, such as wine, olive oil and grain.