Swiss small lady’s pocket watch from a duke’s property Circa 1910

Small gold open faced pocket watch by Patek Philippe & Co.
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A very fine, Swiss small lady’s Geneva pocket watch from a duke’s property, circa 1910.
18-Carat gold case, signed dome, and on the back engraved family crest with a duke’s crown. Signed white enamel dial with radial Breguet numerals, outer minutes track, subsidiary dial for the seconds, and gold spade hands. Signed bridge movement with gold screw compensation balance.
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Diameter: 32 mm
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Weight: 31 g
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Signed: Patek Philippe & Cie. Genève