ROLEX
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The founders of Rolex were Hans Wilsdorf and his brother-in-law Alfred Davis. In 1905, they began their business in London, but they were importing movements from Switzerland and placing them in cases. Later on, they opened up offices in Switzerland and they officially registered the company name as Rolex. Rolex was the first company to introduce a watch with an automatically changing date on the dial, which was the Rolex Datejust in 1945. Rolex was also the first company to introduce an automatically changing day on the dial, a watch thats waterproof to 100 meters, and the first GMT watch. Rolex was the first watchmaker to receive chronometer certification for a wristwatch. Rolex is recognized for the creation of the Rolex GMT Master, which was designed in 1954 to aid the pilots Pan Am Airways with the ordeal of crossing multiple time zones during their travels. The Rolex Submariner was one of the early sport models that were manufactured and these watches are notable for their resistance to water