Swiss 18k gold minute repeating pocket watch Circa 1906

Gold open faced lever watch
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A yellow gold open faced minute repeating watch, circa 1906. Nickel lever escapement, cut bimetallic compensation balance, repeating on three gongs with three hammers, white enamel dial, painted black Breguet numerals, Louis XVI hands, subsidiary seconds at 6, outer minute track with 5 minute indication in red, 18k yellow gold case, inscribed cuvette, solid case back with enamel crest, dial, cuvette, and movement signed.
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Diameter: 50 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 1906 and date of sale on August 27th, 1915, the case back with a crest in champlevé enamel.