PATEK PHILIPPE ''NAUTILUS'' Réf 3900/1 Medium-sized wristwatch in brushed steel, slate-gray dial with lightly stained grooves and luminescent applied hour-markers, date window at 3 o'clock. Octagonal bezel, sapphire crystal. Quartz movement. Steel bracelet, semi-matt articulated links with steel folding clasp, signed. Comes with a Patek Philippe leather travel case. Circa 1985/90. (scratches from use), requires minor watchmaking work on the movement. Diameter: 33 mm.