Prestige Defined The Day-Date has long been associated with leadership and distinction. Introduced in 1956, it was the first wristwatch to display both the day and date in full, earning its reputation as the watch of presidents and visionaries. Classic Aesthetics This model, from 2007, features a 36mm case in 18ct yellow gold with a champagne dial set with eight round diamonds and two baguette-cut diamonds. It is powered by the calibre 3155 automatic movement and fitted with a President bracelet secured by a Crownclasp.