Swiss yellow gold open faced keyless lever watch Circa 1903

Gold open faced lever watch
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A Swiss 18K yellow gold open faced keyless lever pocket watch, circa 1903. Gilt lever movement, 18 jewels, bimetallic balance.
Matte cream enamel dial with Breguet numerals, outer minute divisions and sunken subsidiary seconds at 6 o’clock. The pendant, bezel and edge of the rear cover are decorated with engraved patterns, a monogram on the back. Case, dial and movement signed.
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Diameter: 44 mm
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Signed: Patek, Philippe & Cie Geneva, Switzerland