Reference 228348TBR-0045 presents the Day-Date 40 in a 40mm 18K yellow gold round case with a screw-down caseback and screw-down crown incorporating Rolex's Twinlock double waterproofness system. The bezel is set with diamonds, while a scratch-resistant sapphire crystal with a cyclops lens over the date window protects the rich green ombré dial beneath, which is dressed with Roman numeral hour markers and gold-tone hands.
Powering the watch is the Rolex Calibre 3255, a perpetual self-winding movement offering central hour, minute, and seconds hands alongside instantaneous day and date displays in dedicated apertures. The movement features unrestricted rapid-setting, a stop-seconds function for precise time adjustment, and approximately 70 hours of power reserve. The watch is water-resistant to 100 metres / 330 feet.
On the wrist, the Day-Date 40 rides on a President bracelet with semi-circular three-piece links, secured by a concealed folding Crownclasp buckle in 18K yellow gold. This 2024 example is accompanied by its original box and papers.