Owning a clear and reliable perpetual calendar wristwatch not only enables us to manage our affairs reasonably but also helps us manage our own time, highlighting the extraordinary demeanor of a charming man. Functions: date, day of the week, month, perpetual calendar, moon phase, with quick adjustment! Let you truly be the master of your time! 18K gold, Blancpain, perpetual calendar, complex yet not messy dial, clear and easy to read, quick perpetual calendar adjustment, 38MM in diameter (appears larger in actual hand).