Certainly, every single watch collector has heard or come across different perpetual calenders - Jaeger LeCoultre Master Ultra Thin, Patek Philippe Calenders, Vacheron Constantin Patrimony... However one might not argue that this Perpetual Calender is just like one another, in fact it is possibly the best value to German watchmaking and functionality when handling this piece up close. Welcome to one of the best perpetual calendars for affordability and wearability - Senator Perpetual.