Elegant French gold open faced lever dress watch Circa 1925

Gold open faced keyless lever by Cartier
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A fine, elegant and thin French 18 carat gold open faced keyless lever dress watch, circa 1925. Frosted gilt movement, 17 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring with overcoil, index regulator. Engine turned matte silver dial with painted Roman numerals, outer minute track, subsidiary seconds and original blued steel Breguet hands. Polished case, inset coin edge band, wide bezel, coin edge bow. Dial signed, case numbered.
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Diameter: 45 mm
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Signed: Cartier Paris