Platinum case with a silver-tone platinum bracelet. Fixed silver-tone platinum bezel. Blue dial with index hour markers. Dial Type: Analog. Patek Philippe Calibre 240 Automatic movement, containing 27 Jewels, composed of 161 parts, bitting at 21600 vph, and has a power reserve of approximately 48 hours. Scratch resistant sapphire crystal. Screw down crown. Transparent see through case back. Case size: 38 mm, case thickness: 6.9 mm. Deployment clasp. Water resistant at 30 meters / 100 feet. Functions: hour, minute. Nautilus Series. Luxury watch style. Watch label: Swiss Made. Patek Philippe Nautilus 50th Anniversary Blue Dial Unisex Watch 5610-1P-001.