The Rolex Datejust, introduced in 1945, was the first wristwatch to display the date through an aperture on the dial. is the best selling Rolex model on the market, and has been for decades. Admired for its classic design, the Datejust became an iconic symbol of style.The Datejust II is presented here in Rolex signature Rolesor,a unique combination of 904L steel and 18 ct white gold.