Swiss rare pendant watch of noble provenance Circa 1900

Gold enamel pendant watch by Patek Philippe & Cie.
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A rare Geneva gold enamel pendant watch of noble provenance, circa 1900.
18 carat gold matted case; the front lid with inlaid radial Roman numerals; the back side with a polychrome enamelled family crest, and an engine-turned and signed gold dome. Enamel dial with radial Roman numerals and blued double spade hands. Bridge movement, frosted, gilt, with wolfteeth winding wheels, gold screw compensation balance and counterpoised lever.
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Diameter: 28 mm
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Weight: 37 g
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Signed: Patek Philippe & Cie. Genève