Ultra thin Swiss 18k gold and enamel dress watch Circa 1925

Gold and enamel open faced lever by Cartier
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An ultra thin Swiss 18 carat gold and enamel open faced keyless lever dress watch, circa 1925. Nickel finished lever movement 19 jewels, bimetallic compensation balance. Silvered engine turned dial, central ring with Roman numerals, outer minute track with Arabic five minute divisions and blued steel hands. Case with snap on back blue enamel monogram. Case, dial and movement signed, movement signed European Watch & Clock Co Inc., case numbered (hand stamped).
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Diameter: 46.5 mm
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Signed: Cartier France