Possibly unique Swiss open faced pendant watch Circa 1894

Gold and enamel keyless lever pendant watch by Patek Philippe
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A very fine and attractive, possibly unique Swiss 18 carat gold and enamel open faced keyless lever pendant watch, circa 1894. Gilt finished jewelled lever movement, bimetallic compensation balance, wolf’s tooth winding. Gold cuvette. White enamel dial with Breguet numerals and gold Louis XV hands. Black enamelled  case, back decorated with painted polychrome enamel wild roses. Case, cuvette, dial and movement signed, case and movement numbered. Comes with original box.
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Diameter: 32 mm
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Signed: Patek, Philippe & Co Genève