Patek Philippe Perpetual Calendar Moonphase Grand Complications Watch
37 mm x 44.6 mm 18K white gold case, interchangeable full and sapphire-crystal back, ebony black opaline dial with gold applied Breguet numerals, caliber 240 Q ultra-thin self-winding movement with perpetual calendar (day, date, month, leap year by hands, moon phases, 24-hour dial), approximately 38-48 hours of power reserve, shiny black alligator strap with square scales, prong buckle. Water resistant to 30 m.