Swiss 18k gold quarter repeating automaton watch Circa 1820

Gold open faced cylinder pocket watch
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A very fine and extremely rare Swiss, heavy 18k gold, two-train, hour and half-hour striking clockwatch with quarter repeating and automaton Jacks, circa 1820. Forme collier, polished bezel, engine-turned band, back cover engine-turned grains d’orange, central oval cartouche engraved with initials L.B.G. Hinged gilt metal cuvette.
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Annular white enamel dial with Arabic numerals, outer minute divisions, the centre with two finely chased varicoloured gold Jacks, one representing Chronos, appearing to strike bells with the striking and repeating, a trophy below. Blued steel Breguet hands. A matte gilt movement, two-train, standing barrels, cylinder escapement, three-arm steel balance, flat balance spring, index regulator, striking and repeating on gongs activated by a trip button in the pendant. Strike/not strike and lock for the repeating in the band. Dial and cuvette signed.
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Diameter: 58 mm
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Signed: D. Droz dit Busset  Le Locle
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The present watch is exceptionally rare, being a striking clockwatch with repeating and automaton Jacks. It is of a much higher specification than most watches with automaton Jacks, the case is of heavy gauge gold and the trip repeating rather than depressing the pendant fully is a sophisticated feature. The movement has a separate train for striking and repeating, which is highly unusual.