Rolex Day-Date 18038 Purple Jubilee Dial Box and Papers French HallmarksIntroduced in 1956, the Rolex Day Date was the worlds first waterproof, self winding chronometer wristwatch to display both the date and the day of the weekspelled out in fullacross two separate windows. By 1977, Rolex updated the Day Date with the introduction of the reference 18038, featuring the improved single quickset movement. This allowed the wearer to adjust the date independently of the time, alongside the transition from acrylic to sapphire