Platinum case with a grey (alligator) lesather band. Fixed platinum bezel. Grey dial with index hour markers. Minute markers around the outer rim. Day of the week, date and year display below the 12 o'clock position. Small seconds / moonphase subdials. Patek Philippe Calibre 31-260 PS QL hand wind movement. Scratch resistant sapphire crystal. Transparent case back. Round case shape, case size: 41.3 mm, case thickness: 11.07 mm. Deployment clasp. Water resistant at 30 meters / 100 feet. Functions: in-line perpetual calendar. day, date, month, leap year and day/night indication in apertures. small seconds. Grand Complications Series. Luxury watch style. Patek Philippe Grand Complications Perpetual Hand Wind Day-Night Grey Dial Mens Watch 5236P-011.