“More people have walked on the moon than have been to the deepest place in the ocean.” In 1926, Hans Wilsdorf, the founder of Rolex, filed a patent for an ‘oyster case’ in Britain. The components of the oyster case include a screw-down crown, case back and bezel. When combined, it sealed the watch preventing water from penetrating into its insides. The original design was patented by Paul Perregaux and Georges Peret.. Read More