Swiss 18K yellow gold hunting cased pendant watch Circa 1860

Gold hunting cased keyless lever 
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A fine Swiss, 18K yellow gold, hunting cased keyless pendant watch, circa 1860. An engine-turned case, engraved and black painted with floral motifs, gold hinged cuvette. Two-tone enamel dial, radial Roman numerals, matte white painted centre with light blue floral rosette, sunk subsidiary seconds. Blued steel Breguet hands. A frosted gilt movement, 17 jewels, straight-line lever escapement, cut-bimetallic compensation balance with Breguet balance spring. Signed on the cuvette.
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Thickness: 11 mm
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Diameter: 41,5  mm
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Signed: Philippe & Co.  Genève
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The dial is patinated and the hands are partially replaced.