Fine Swiss gold open faced keyless lever watch Circa 1917

Gold lever pocket watch by Patek Philippe
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A fine Swiss 18 carat gold open faced keyless lever watch, circa 1917. Retailed by Tiffany & Co. Nickel finished ultra thin lever movement, 18 jewels. Gold cuvette. Gilt dial with Roman numerals and sunken subsidiary seconds. Murat style case, chased and engraved bezels, hinged case back. Cuvette signed, case and movement signed and numbered, dial signed by retailer.
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Diameter: 44 mm
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Signed: Tiffany & Co Switzerland – Patek, Philippe & Co Genève