Swiss gold lever pocket watch by Patek Philippe Circa 1910

Gold lever with open face by Patek Philippe & Co.
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A fine Swiss 18 Carat yellow gold manual wind open faced lever pocket watch, circa 1910. Retailed by Spaulding & Co., Chicago.
Manual winding movement, calibre 17, counterpoised escapement, bimetallic balance with over coiled spring, micrometre regulator. Enamel dial with Arabic radial hours, outer minutes track with red five minutes numerals, subsidiary dial for the seconds, and original gold Louis XV-style hands. Plain 18 Carat yellow gold polished case. Dial, case and movement signed.
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Diameter:46 mm
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Signed: Patek Philippe & Co. Genève, Spaulding & Co.