Defining the future of fine mechanical watchmaking, Vacheron Constantin presents the Traditionnelle Twin Beat Perpetual Calendar, a timepiece that can adapt to its wearer?s needs.

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.
One of the most basic assumptions of mechanical watchmaking used to be that the energy output of the mainspring barrel had a fixed timespan, with very little deviation from the stated power reserve. The Traditionnelle Twin Beat Perpetual Calendar transforms the mainspring into a source of variable energy levels, giving fine mechanical watchmaking a completely new degree of versatility. Drawing on 264 years of horological expertise, Vacheron Constantin has achieved this innovative coup by giving the Traditionnelle Twin Beat Perpetual Calendar two balances, each operating at a different frequency that has never been used before by the Maison. A pusher at the 8 o?clock position allows the wearer to easily switch from one frequency to another, depending on activity level. When the watch is on the wrist, the wearer will get the most out of it by keeping it in Active mode, which features a 5Hz (36,000vph) balance and 4 days o...