Rare Swiss gold and enamel open faced watch Circa 1908

Rare 20K gold and enamel watch by Patek Philippe et Co.
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A rare Swiss 20 Carat yellow gold and enamel open faced watch, circa 1908. Retailed by J.B. Hudson and son, Minneapolis.
20 Carat gold, polished case, design Mura, with florally engraved and translucent cobalt blue enamelled edges, reeded band, and engine-turned and signed gold dome. Signed, creamy-coloured enamel dial with Arabic Breguet numerals, auxiliary seconds, and blued Breguet hands. Nickel-plated bridge movement with Geneva Stripes decoration, eight adj., eighteen jewels, gold screw compensation balance, and counterpoised lever.
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Diameter: 46 mm
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Weight: 105 g.
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Signed: Patek Philippe et Cie Genève
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Extract from the Archives confirming all details and sale in 1909.
It is highly unusual to find a Patek Philippe watch made in 20k gold. The present example is stamped 20k very clearly and this information is also confirmed on the Extract from the Archives. Extract from the Archives confirming numerals and sale in 1924.
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In 1844 Patek met the French watchmaker Jean-Adrien Philippe, who demonstrated his new invention: the first watch without a wind-up key. Patek and Philippe decided to work together from 1845 and in 1851 their company Patek Philippe and Cie was founded. In 1901 the name was officially Ancienne Manufacture d’Horlogerie Patek Philippe and Cie, S.A.