Swiss gold repeater with cylinder musical movement Circa 1812

Gold open faced musical watch
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A very fine and rare Swiss, 18K gold, musical watch with cylinder musical movement, of unusual construction and with quarter repeating, circa 1812. Empire case, polished back, reeded band and bezels, gilt metal hinged cuvette. White enamel dial, Breguet numerals, outer minute divisions, winding aperture at 4. Blued steel Breguet hands.  Fixed barrel, cylinder escapement, three-arm brass balance with flat balance spring, repeating on gongs by depressing the pendant, pinned cylinder musical movement with 35 tuned vibrating blades divided into twelve sections of three blades each and one of two, pinion governor in eccentric socket for tempo adjustment, gold engine-turned cover over the pinned cylinder. Pinned cylinder signed.
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Diameter: 58 mm
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Signed: Chapuis & Barral  Genève
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Abraham Chapuis & Barral Makers of musical watches with pined cylinders, starting at the beginning of the 19th century. They often made watches with quarter repeat and cylinder escapements.