Extra thin Swiss 18 carat white gold keyless dress watch Circa 1965

White gold full hunter
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A very fine and extra thin Swiss 18 carat white gold hunting cased knife edged (montre couteau) keyless dress watch made by Vacheron & Constantin SA in Geneva, circa 1965. The rhodium plated movement with Geneva striping decoration, stamped with the Geneva quality mark, 17 jewels, a straight line lever escapement, monometallic balance adjusted to heat, cold, isochronism and five positions, and a self compensating flat balance spring. Champagne coloured dial with Roman hour numerals and blued leaf hands. A plain case. Dial signed, case and movement signed and numbered. Comes with an 18 carat white gold chain.
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Diameter: 42 mm
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Signed: Vacheron Constantin Genève Swiss
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Couteau is a term used by Cartier to describe the type of ultra thin watches with knife edged cases, open faced or hunting cased models. These watches, with thicknesses of less than 4 mm for the open faced and less than 5 mm for the hunting cased version, are among the thinnest mechanical watches ever produced.