With the Submersible, Panerai renews with its great tradition of epic exploits in the depths of the sea. The design of the bezel is inspired by that of the watch created by Officine Panerai in 1956 for the Egyptian Navy known as LEgiziano. This was an exceptionally large and robust watch with a case diameter of 60 millimeters. Light, strong and hypoallergenic, the remarkable physical, mechanical and corrosion-resistant qualities of titanium have made this metal one of the most valued in fine watchmaking, as well as a material of choice for the military, aeronautical and aerospace industries.