Patek Philippe Genève, "Nautilus", Ref. 3800/001, circa 1986. Case: steel/gold, 37 x 33 mm, water-resistant 120m, Patek Philippe steel/gold bracelet. Dial: gold, bar texture, central second indication and date. Cal. 330SC aut., extra-thin 18k gold rotorwind automatic movement. Accompanied by Certificate of origin.