Any time a company on Vacheron’s level does something for the first time, it’s worth paying attention and having a closer look. Within the new Traditionelle Tourbillon is the new in-house Caliber 2160, an 18,000 vph slow-beat automatic tourbillon with an open carriage shaped like a Maltese cross. The movement is on thinner side, at 5.65mm thin, especially when you consider that it is automatic, has a complex escapement, and comes in with a power reserve of 80 hours.