Patek Philippe Complications Perpetual Calendar Cushion (5940J001) self – winding automatic watch, features a 44.6mm x 37mm 18k yellow gold case surrounding an ivory dial on a brown alligator strap with an 18k yellow gold tang buckle. Functions include hours, minutes, small seconds, date, day, month, moon phase and perpetual calendar. This watch comes with the original box. We back this watch with a 2-Year WatchBox warranty!