Swiss gold and silver watch with openwork dial Circa 1916

Gold open faced lever watch
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A fine and rare yellow gold and silver open faced watch with openwork dial, circa 1916. Nickel lever movement, 18 jewels, three dimensional three tone dial, applied yellow gold radial Roman numerals to the chapter ring, Breguet hands, the outer ring with pearled minute divisions, silver openwork centerfield with scrolling foliate flowers, 18 Carat yellow gold case, finely engraved case band, vertical guilloché case back with scrolling foliate vines and six Ascher cut sapphires.
Case, dial, and movement signed.
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Diameter: 45 mm
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Signed: Patek Philippe  Genèva Swiss
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Accompanied by an Extract from the Archives confirming the year of manufacture in 1916 and date of sale on January 31st, 1920 with a vertical guilloché case back with chiselled border and six sapphires. Prior to their acquisition, Patek Philippe ordered many of their dials from Stern Frères SA, arguably the finest dial makers in the world. The present example has an extremely attractive and well preserved openwork dial with silver engraving.