Large Swiss gold quarter repeating musical watch Circa 1820

Gold open faced with virgule escapement
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A rare, large Swiss 18K pink gold musical pocket watch with quarter repeating and virgule escapement, playing music on the hour or at will, circa 1820. A polished case with stepped curved bezels, and a reeded band. Gilt metal cuvette hinged to the movement ring. White enamel dial with Arabic numerals, outer minute divisions and blued steel Breguet hands. A matte gilt, half-plate movement, spring barrel for the going train, virgule escapement, three-arm balance, flat balance spring, polished steel endpiece, index regulator, repeating on blued steel gongs activated by depressing the pendant, polished steel repeating work on the backplate, large barrel for the musical train with finely foliate engraved upper surface, polished steel stop work, sur-plateau brass musical disc pinned on both sides, 22 individual tuned steel teeth playing on both sides of the disc.
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Diameter: 58 mm
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Signed: No Name
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Some dents on the case.
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A fine Swiss musical watch in good condition and of large size. The foliate engraving on the flowing barrel is reminiscent of that found on pieces by Jaquet Droz in the late 18th century and may have been inspired by such a watch. The use of the virgule escapement is unusual and attests to the horological knowledge of the maker in producing a musical watch with a better finish than most of this type.