Description: Rolex Day-Date 36 ref 1803 Pre-owned Rolex Day-Date 36 ref 1803 (1969). The Day-Date was the first wristwatch to display both the fully spelled-out day of the week and the date on the dial, immediately positioning it as the flagship model within the Rolex catalog. Unlike the Datejust, which Rolex offered in steel and two-tone configurations, the Day-Date was reserved exclusively for precious metals from the very beginning, reinforcing its status as the brand’s