Very thin French 18 Carat yellow gold keyless dress watch Circa 1930

Gold hunter cased lever by Cartier
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A very fine and elegant French, very thin, 18 Carat yellow gold keyless dress watch, circa 1930. A knife edge, polished case with a wide bezel and triangular bow. Matte silver dial, with radial Roman numerals and an outer minute track. Blued steel Breguet hands. A matte gilt movement, 20 jewels, straight line lever escapement, cut bi metallic compensation balance adjusted to eight positions, flat balance spring, shock absorber, index regulator.
Dial, case and movement signed.
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Thickness: 4 mm
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Diameter: 50 mm
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Signed: Cartier  Paris
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The case is slightly scratched and the dial is patinated.