French gold with diamonds of royal provenance Circa 1850

Gold and enamel cylinder pendant watch
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A gold enamel pendant watch, studded with diamonds of royal provenance, circa 1850. An 18k gold, polychrome enamel, diamonds case, enamel dial, bridge movement, keywind, cylinder escapement, three-arm steel balance. Both sides of the round hunting cased are decorated with a diamond border and translucent cobalt blue enamelling on a radial engine turned pattern. The back shows a gold crown set with diamonds above the letter G. The front is decorated with the polychrome painting of a Romanian royal/marriage coat of arms – most likely a gift on the occasion of a royal wedding.
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Diameter: 33 mm
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Weight: 31 g
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Signed:  Neumann   Paris