Swiss platinum and gold lever Art Deco dress watch Circa 1925

Platinum and 18k gold lever watch
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A very fine, rare and thin Swiss platinum and 18 carat gold open faced keyless lever Art Deco dress watch, circa 1925. Rhodium plated movement, Genevea stripingdecoration, 18 jewels, straight-line lever escapement, cut bimetallic compensation balance with blued steel Breguet balance spring, index regulator. Brushed silver dial with black champlevé cubiste numerals, outer minute track and original blued steel Breguet hands. Brushed yellow gold case with platinum band and bow, bezel and border with platinum fillets. Dial signed, case numbered.
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Diameter: 47 mm
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Signed: A L’Emeraude Lausanne