Vacheron Constantin Patrimony Perpetual Calendar Ultra-Thin (43175000RB343) self – winding automatic watch, features a 41mm 18k rose gold case surrounding a black dial on a black alligator strap with an 18k rose gold deployant buckle. Functions include hours, minutes, seconds, date, day, month, moon phase and perpetual calendar. This watch comes with the original box and papers. Time remaining on the factory warranty!