In 1926, the Rolex in a waterproof properties of the most important breakthroughs made, invented a dual lock-in waterproof led by the so-called Oysterwaterproof watch, and formally registered. The rolex Oyster Perpetual, because of its spin-in waterproof tegmental source of inspiration for the structure modeled from the oysters came, allegedly Wilsdorf at a dinner party in your best efforts can not open a tightly closed oyster, which invented the This is the history of the watch case to change the structure. In order to own invention onto the world stage, Wilsdorf came up with a re-unheard-of promotional practices, once again prove to the world his unique business practices and vision.