Swiss gold and blue enamel decorated pocket watch Circa 1900

Gold open faced lever
–
An elegant Swiss, 18 carat gold and enamel keyless dress watch, circa 1900. A solid case with a hinged gold cuvette. A polished hinged case back with blue champlevé enamel geometric pattern outer border, the bezel decoration to match. White enamel dial with Arabic numerals, outer minute track, subsidiary seconds and blued steel hands.
A rhodium plated, Geneva striping decoration, 19 jewels, counterpoised and calibrated straight line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, patented index regulator with snail cam adjuster index regulator. Dial, case and movement are signed.
–
Diameter: 47 mm
–
Signed: Patek Philippe & Cie.  Genève
–
Accompanied by the Extract from the Archives.