Swiss yellow gold and enamel open faced watch Circa 1911 

A gold and enamel open faced watch
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A Swiss 18k yellow gold and enamel open faced watch, retailed by Will H. Beck Co, Sioux Cty, Iowa, circa 1911, movement, 20 jewels, presentation engraving to 18k gold cuvette.
White enamel dial, Breguet numerals, Louis-XVstyle hands, bezels and bottom of pendant with blue enamel in Greek key motif, braided case band, monogram to case back, case and dial signed by maker, movement and cuvette signed by maker and retailer.
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Diameter: 45 mm
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Signed: Patek Philippe & Cie Geneva  Switzerland
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Extract from the Archives confirming ornamentation and sale in 1911