Vacheron Constantin Traditionnelle Twin Beat perpetual calendar 42 mm Black Dial Platinum Alligator Leather Strap 3200T/002P-B578

When worn, the Traditionnelle Twin Beat perpetual calendar beats at a high frequency that is aligned with modern active lifestyles, displaying the hours, minutes, date, month, leap year cycle and power reserve on its dial. When the watch is not being worn, its in-house developed calibre 3610 QP can be slowed down in order to guarantee an extended power reserve of at least 65 days.