Vacheron & Constantin "Automatic", Genève,No. 506055, case No. 344094, Ref. 4870, circa 1951.Very fine, centre second, self-winding, water-resistant, 18K yellow gold gentleman's wristwatch. two body, massive, polished, screwed case back. matte silver with applied gold indexes. "Bâton" yellow gold hands. Cal. P 499, rhodium plated, "fausses côtes" decoration, 21 jewels, lever escapement, monometallic balance adjusted to temperatures, shock-absorber, self-compensating flat balance-spring, micrometer regulator.Dial, case and movement signed.Diam. 36 mm.