A Rolex may be the most instantly recognizable watch in the world, and it’s for good reason : the brand is, in many ways, the industry’s standard-bearer. In 1910, five years after its founding, Rolex produced the first watch to receive the Swiss Certificate for Chronometric Precision, and the brand has been synonymous with exacting watchmaking ever since. While it may not be the oldest watchmaker, Rolex set the template for watches as we know them today, introducing the first waterproof timepiece in 1926, inventing self-winding technology in 1931 and date displays in 1945.