Vacheron Constantin Historique, Ref. 7391 a very fine and rare limited edition 18ct gold wristwatch with lapis lazuli dial, 1970s, manufacturer: Vacheron Constantin, year: circa 1970, reference no.: 7391/Q, movement no.: 656'467, case no.: 489'835, material: 18ct gold, calibre: automatic, cal. K1120, 36 jewels, bracelet/strap: 18ct gold Vacheron Constantin mesh bracelet, max length 190 mm, clasp/buckle: 18ct gold Vacheron Constantin clasp, dimensions: 31 mm diameter, signed: case, dial, movement and clasp signed, accompanied by a Vacheron Constantin Certificat d'Origine et de Garantie and box.