Swiss 18K gold, pearl and ruby set pocket watch Circa 1830

Gold open faced verge pocket watch
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very fine Swiss 18K gold, pearl and ruby set pocket watch with clip attachment and key decorated en suite, made for the English market, circa 1830. Gilt brass full-plate, cylindrical pillars, fusee and chain, verge escapement, three-arm brass balance, flat balance spring, pierced and chased continental type balance cock, silvered regulation dial.
Case with sprung and hinged bezel set with 30 rubies, each surrounded by a border of seed pearls, the back with border to match the bezel, the centre set entirely with pearls and set with seven rubies, pendant and bow decorated to match.
Gold with applied polished radial Roman numerals, multicoloured foliate gold border and centre. Gold hands. Case and movement signed.
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Diameter: 43 mm
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Signed: Bautte & Moynier à Genève
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Bautte & Moynier Successors of the renowned Genevan firm which was founded by Jean-François Bautte, and which was known successively by the names of Moulinié & Bautte, Moulinié, Bautte et Cie, Moulinié, Bautte & Moynier, Bautte, Jean-François Bautte & Cie, Rossel, Bautte & Cie, J. Rossel et Fils, Felipe Hecht, and Juan Hecht. The Bautte & Moynier firm was founded in 1826 by Jean-François Bautte and Jean-Gabriel Moynier.