Patek Philippe Genève, "Nautilus", Ref. 3800/002JA, Cal. 335SC aut., 37 x 33 mm, circa 1983. Case: steel/gold, gold bezel set with brilliant-cut diamonds, Patek Philippe steel/gold bracelet. Dial: gold, bar texture, central second indication and date. From the first edition of the classic Nautilus Midsize reference 3800. Accompanied by Certificate of origin.