Swiss 18k pink gold hunting cased chronograph Circa 1855

Pink gold lever pocket watch
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A very fine and rare Swiss, 18K pink gold, a keyless, hunting cased pocket watch with chronograph, circa 1885. Sold on February 27, 1888. Accompanied by the original fitted box and the Extract from the Archives. A polished case, front cover with an engraved foliate monogram, chronograph button at 5 o’clock. Hinged gold cuvette. White enamel dial with radial Roman numerals, outer minute and fifths of a second track with Arabic five minute/seconds numerals. Blued steel spade hands. A rhodium-plated movement, Geneva striping decoration, 21 jewels, wolf’s tooth winding, counterpoised straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator, visible chronograph work. Dial and case signed Patek Philippe & Co., movement numbered.
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Diameter: 51 mm
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Signed: Patek Philippe & Co.  Genève