It’s hard to imagine it now, but the date complication was a game-changer when it was introduced to watches. The Rolex Datejust, launched in 1945, became the first automatic wristwatch whose date instinctively changed at midnight.
Watch wearers no longer had to look up the date and manually change it on their timepieces. At long last, the date will be just, all the time.
Today, the date function is ubiquitous in watches. Rolex alone has three families of classic watches that focus on telling the date in addition to the time – the Rolex Datejust, Date, and the now discontinued Oysterdate Precision.