Swiss 18K yellow gold, enamel and diamond set watch Circa 1880

Gold open faced lever pocket watch
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A fine Swiss 18 carat yellow gold and enamel open faced pocket watch made by Patek in Geneva, circa 1880. Polished case with a spring loaded back featuring an engraved Greek border, centred by a diamond set flower bouquet (one diamond missing) on a blue guilloché ground and a hinged gold cuvette signed Patek Genève. White enamel dial with Roman hour numerals, an outer minute track and fine decorative hands. A gilt brass movement with eight jewels, straight line lever escapement, monometallic compensation balance, blued steel balance spring and an index regulator. Cuvette signed, case and cuvette numbered. 
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Diameter: 32 mm
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Signed: Patek Genève