Swiss 18 carat gold pocket watch with chronograph Circa 1890

Gold lever watch by Patek Philippe & Cie
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A very fine Swiss, 18 Carat yellow gold keyless pocket watch with chronograph, circa 1890. A polished case, co axial chronograph button in the crown for the stop/start and return-to-zero function of the chronograph. Hinged gold cuvette. White enamel dial with narrow radial Roman numerals, outer minute track and fifths of second divisions with Arabic five minute/seconds numerals. Blued steel spade hands. A rhodium-plated movement, geneva striping decoration, 21 jewels, wolf’s tooth winding, straight-line lever escapement à moustache, cut bimetallic compensation balance, blued steel Breguet balance spring, Wilmot’s patented cam regulator, visible chronograph work. Dial, case, cuvette and movement signed.
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Diameter: 54 mm
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Signed: Patek Philippe & Cie  Genève
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The dial is slightly scratched.