Audemars Piguet’s latest perpetual calendar emphasizes hand-adjusted tradition.

“The idea is to rework the traditional perpetual calendar in a more contemporary way,” declares Audemars Piguet’s global brand ambassador Claudio Cavaliere about the company’s new Royal Oak Perpetual Calendar. Looking at the new automatic caliber 5134 mechanism inside the Royal Oak—the fifth version applied to the venerable and venerated 2120 automatic movement—it becomes clear that this is an incremental update to the trad…