Swiss 18K gold quarter repeating pocket watch Circa 1820

Gold open faced pocket watch by Du Bois & Fils
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A fine Swiss, 18K gold, quarter repeating pocket watch with ruby cylinder escapement, circa 1820. An Empire case, Mastermark FHM, reeded band, polished bezels, the back engine-turned with a sunray pattern and engraved initials in a cartouche, bolt at 1 o’clock for locking the repeat. Hinged gilt cuvette. White enamel dial with Breguet numerals and outer minute track. Blued steel Breguet hands. A gilt brass, standing barrel, jewelled ruby cylinder escapement with steel escape wheel, plain three-arm balance, blued steel flat balance spring, index regulator, repeating on gongs activated by depressing the pendant. Dial and cuvette signed.
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Diameter: 55 mm
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Signed: Du Bois & Fils  Genève
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The company was established by Philippe Dubois (1738-1808) and became one of the most eminent in the Neuchâtel area for over two centuries.