Swiss 18 carat gold open faced keyless lever watch Circa 1905

Gold open faced lever by Patek Philippe
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A Swiss 18 carat gold open faced keyless lever pocket watch, circa 1905. Retailed by E.A. Whipple & Sons, Springfield, Massachusetts. Gilt finished lever movement, wolf’s tooth winding, bimetallic compensation balance, swan neck regulator. Gold cuvette. White enamel dial with Breguet numerals, outer calibrated red Arabic 1/5th second numerals and subsidiary seconds. Plain case, hinged back. Case, cuvette, dial and movement signed by maker, movement signed by retailer.
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Diameter: 45 mm
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Signed: Patek, Philippe & Cie Genève