I've actually asked Rolex this question myself and replica watches they more or less said that a Rolex chronograph watch should measure more than just the time so they needed a cool name to replica watches indicate such. I do admit that Cosmograph does have a pleasant sense of mystery to it. Daytona was added as Rolex began to have a more serious involvement with the world of racing and named the watch replica watches sale family after the now famous race track in Florida. Unlike the other models in the now Rolex Oyster Professional collection, the Daytona would eventually adopt a slightly different case design due to the existence of the replica watches chronograph pushers. The original Daytona models did not include screw-down pushers, but the collection replica watches would later be known for this feature as Rolex added them to increase durability and water and dust resistance.