Swiss platinum and diamond-set Art Deco dress watch Circa 1929

Art Deco lever dress watch by Vacheron & Constantin
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A rare and very thin Swiss platinum and diamond-set open faced Art Deco lever dress watch in Breguet style, circa 1929. Made for the American market. High-quality precision lever movement, 18 jewels, adjusted in eight positions. Silvered dial with applied Breguet numerals and Breguet hands. Plain case, diamond-set rim, monogram on the back also set with diamonds. Movement signed and numbered, dial signed. Comes with an Extract from the Archives.
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Diameter: 42 mm
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Weight: 41 g
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Signed: Vacheron & Constantin Genève Swiss