Swiss gold quarter repeating musical pocket watch Circa 1820

Open faced repeating musical watch
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A large Swiss gold open faced quarter repeating musical pocket watch, circa 1820. Gilt movement with fixed going barrels for the going and musical trains, cylinder escapement, gold three armed balance, flat balance spring, polished steel end plate, index regulator, 25 tuned vibrating steel teeth acting on both sides of the large pinned musical disc, playing music at will or on the hour. Gold dial with guilloché center and white enamel cartouches for the Arabic numerals, outer engraved minute division and blued steel moon style hands. Empire style case, milled band, engine turned back cover, hinged gilt brass cuvette, repeating on gongs by depressing the pendant, lever at 8 o’clock under the cuvette for music/silent mode, bolt at 1 for locking the repeat, bolt at 6 for activating the music. Numbered 859 on the movement under the dial, case numbered and hallmarked.
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Diameter: 57 mm
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Signed: No name