Swiss rose gold quarter repeating musical watch Circa 1820

Rose gold musical repeater
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A Swiss 18 carat rose gold open faced quarter repeating musical cylinder pocket watch, circa 1820. Bridge movement, two hammers, two gongs, two barrels, cylinder escapement, three-arm brass balance. Two-tone gilt engine-turned dial with applied Roman hours, minute divisions and an outer ring of decorative foliage and flowers. Plain case, reeded band. Case numbered.
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Diameter: 56 mm
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Weight: 136 g
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Signed: Abraham Chapuis & Barrel à Genève