The Admiral’s Cup Chronograph 48 Grand Prix Corum houses caliber CO753, an automatic-winding mechanical chronograph movement chronometer-certified by the COSC, the ultimate sign of reliability and accuracy. This CO753 caliber operates at a frequency of 28,800 vibrations per hour and has a 42-hour power reserve. The 12-sided case is made of titanium, chosen for its lightness and hardness. Its imposing 48-mm diameter speaks of its power. It has locking pushbuttons thanks to an exclusive lockout system. These buttons frame a crown made of the same material and engraved with the Corum key. A black rubber bezel surrounding the convex sapphire crystal anti-reflective coating protects the upper part of the dial, while the screw-down case back