Day-Date 40 White Gold Meteorite Diamond

At its launch in 1956, the Day-Date was a major innovation: it was the first calendar wristwatch to indicate, in addition to the date, the day of the week spelt out in full in a window on the dial – a technical feat at the time. The Day-Date has only ever been made from precious metals –18 ct yellow, white or Everose gold, or 950 platinum. Worn by many of the world’s political figures, directors and visionaries, the Day-Date is instantly recognizable, in particular thanks to its emblematic President bracelet, whose evocative name, together with the eminent figures who have worn it, ensured the Day-Date became known as the ‘presidents’ watch’.

The Day-Date’s calendar displays the day of the week spelt out in full in an arc-shaped window at 12 o’clock in addition to the date in a separate window at 3 o’clock. This display relies on disc mechanisms; the day and date change simultaneously and instantaneously. The indication of the day of the week is available in a choice of 26 languages. The Day-Date is also equipped with a mechanism allowing rapid adjustment of the day and the date using the winding crown. The Day-Date’s Oyster case, 36 or 40 mm in diameter and guaranteed waterproof to a depth of 100 metres (330 feet), is a paragon of robustness and elegance. The Day-Date 36 and Day-Date 40 are equipped with calibre 3255, a self-winding mechanical movement entirely developed and manufactured by Rolex.