Anthracite Gray Dial with Luminescent Hands and Roman Numerals, Center Sweep Seconds Hand, Power Reserve Indicator. Full Annual Calendar Functions with Day, Month, Moon Phases, Sapphire Crystal. Highest Quality Black Patek Philippe Alligator Strap with Platinum Patek Philippe Tang Buckle. Reference No: 5056-P Case Diameter: 37mm Case Thickness: 11mm Power Reserve: 48hr Water Resistance: 30m 100ft Handmade Swiss Automatic Movement Visible Through Sapphire Exhibition Caseback(Calibre 315199). Rare and Important Platinum Patek Philippe Annual Calendar wristwatch. A magnificent specimen of Patek Philippe, wonderful dial with day, date, month, moonphase and power reserve indicators. Sapphire Exhibition Caseback, Brand New Patek Philippe Alligator strap and Platinum Patek Philippe Buckle. A most magnificent watch that will surely appreciate in the years to come. Watch is in perfect condition with Patek Philippe Box, Archive Patek Warranty Papers, Booklets, Setting Stylus, Etc.