Very fine gold quarter repeating Swiss pocket watch Circa 1830

Gold and enamel watch with jump hours
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A very fine 18 carat gold and enamel, quarter repeating pocket watch with jump hours. Made by Moynier & Fils, à Genève Circa 1830.
Four-body case with pendant and bow entirely decorated with gold foliage and white champlevé enamel flowers on a black champlevé enamel ground, glazed apertures for the jump-hours and minutes dial in the front cover. Hinged gold cuvette.
Silver engine-turned dial with minute divisions on a brushed chapter ring and gold minute hand.
Matte gilt movement with jewelled cylinder escapement with plain three-arm balance, flat balance spring, index regulator and repeating on gongs activated by depressing the pendant.
Cuvette signed.
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Diameter: 46 mm
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Signed: Moynier & Fils, à Genève