The Rolex Day-Date was released in 1955 and had many features that were considered ahead of its time, including an automatic movement, plus day and date discs. Because of these unique features, the “Rolex Day-Date”  soon became the flagship model for Rolex. This first rolex model was the 6511. Rolex’s 6611 models that were waterproof up to 100 feet soon replaced the Day Date but it was still externally identical.. Read More