Prestige and Precision The Rolex Day-Date has long been associated with leadership and distinction. As the first wristwatch to display both the date and the day of the week in full, it remains a symbol of status and innovation within the Rolex collection. Elegant Aesthetics This reference 18348 features a 36mm case and is powered by the calibre 3155 automatic movement, offering a 48-hour power reserve. The gem-set bezel adds a luxurious flourish, while the silver dial and President bracelet with Crownclasp complete its refined and distinguished profile.