Swiss 18 Carat gold quarter repeating musical watch Circa 1820

Gold open faced cylinder watch
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A very fine and rare Swiss 18K gold, quarter repeating musical watch with music playing on the hour or at will, circa 1820. Engine-turned with ribbed band. Hinged gilt brass cuvette. Gold, champlevé dial, matte Arabic chapter ring, outer minute track, engine-turned centre. Blued steel Breguet hands. Gilt brass full plate two train movement with cylindrical pillars, cylinder escapement, plain brass three arm balance, flat balance spring, small gilt brass bridge cock, repeating on gongs by depressing the pendant. Musical train with pin barrel and six stacked steel teeth. Signed on the gilt brass dust rim, numbered on the pillar plate, case punched with case maker’s mark FM.
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Diameter: 58 mm
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Signed: Henry Capt  Genève