Swiss gold and enamel keyless lever dress watch Circa 1928

Open faced lever dress watch by Patek Philippe
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A fine Swiss 18 carat gold and enamel open faced keyless lever dress watch, circa 1928. Retailed by Tilden-Thurber C., Providence, R.I. Nickel finished lever movement, 18 jewels. Silvered dial with applied gold Arabic numerals, outer dot minute divisions and subisidary seconds dial. Bezels with black, white, blue and green champlevé enamel decoration, hinged case back with black enamel FPB. Case, dial and movement signed by watchmaker, movement also signed by retailer, case and movement numbered.
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Diameter: 46.5 mm
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Signed: Patek, Philippe & Cie Geneva, Switzerland