The Rolex Day-Date is usually called the Rolex President. But, it is common for the brand to be given names. Hence, it has the Pepsi, The Hulk, and The Batman. The unusual thing is that the Rolex Day Date has adopted the moniker that it even ran an advert referring to the wristwatch as the Rolex President Day-Date Chronometer.
There are some theories associated with how the presidential association came about. Firstly, the luxury watch brand made a new bracelet for the Day-Date launch. The bracelet features semi-circular three-piece links and is made in the same metal as the case. Rolex called it the President bracelet. Another theory is that Marilyn Monroe allegedly gave one to an actual U. S. President.