Swiss yellow gold open faced keyless dress watch Circa 1915

Gold watch made for Dickinson & Co. NY
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A fine Swiss 18 carat yellow gold keyless dress pocket watch, circa 1915. Made for T. & E. Dickinson & Co., Buffalo, New York. A polished case, curved bezel, and the back cover with engraved initial monogram. Hinged gold cuvette with engraved dedication. White enamel dial with bold Roman numerals, outer minute track, sunk subsidiary seconds and blued steel hands. Rhodium plated movement, Geneva striping decoration,  patented bridge calibre, 18 jewels, counterpoised straight line lever escapement, cut bimetallic compensation balance with eight adjustments, blued steel Breguet balance spring, Wilmot`s patented micrometric cam regulator. Dial, case, cuvette and movement signed.
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Diameter: 45 mm
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Signed: Patek, Philippe & Cie.  Genève