Swiss 18 carat yellow gold lever pocket watch Circa 1907

Open faced pocket watch by Patek Philippe
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A yellow gold and enamel open faced watch, circa 1907. Manual winding nickel lever movement, 20 jewels, cut bimetallic compensation balance, white enamel dial, painted black Breguet numerals, blued steel Breguet hands, subsidiary seconds at 6, outer minute track, 18k yellow gold case, bezels and pendant enhanced with Paillonné blue enamel painted Greek key pattern, hinged 18k yellow gold cuvette engraved with dedication, monogrammed case back, case, dial, cuvette, and movement signed. 
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Diameter: 46 mm
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Signed:  Patek Philippe & Cie.  Genève Switserland
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Accompanied by an Extract from the Archives confirming the year of manufacture in 1907 and date of sale on July 3rd, 1911 with blue paillonné enamel pattern and varicolored monogram.