Recased gold, enamel and pearl set musical watch Circa 1820

Gold, enamel and pearls set open faced musical verge watch
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A recased Swiss gold, enamel and pearl set open faced two train musical keywound verge watch, circa 1820. Keywound two train verge movement, musical pin barrel, music/silence lever. Gilt cuvette.
White enamel dial with Roman numerals and subsidiary seconds. Large later case, pearl set bezels, pendant and bow, milled band, the recent associated case back with a polychrome enamel floral scene against translucent green enamel on engine turned ground.
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Diameter: 62.5 mm
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Signed: No name