Rolex 278273 mdj Oyster Perpetual Datejust Watch.  31mm yellow Rolesor case comprised of Oystersteel and 18K yellow gold, screw-down back, screw-down crown with twinlock double waterproofness system, 18K yellow gold fluted bezel, scratch-resistant sapphire crystal with cyclops lens over the date, mother-of-pearl dial, diamond hour markers, Rolex calibre 2236 perpetual self-winding movement with date at 3 o'clock, approximately 55 hours of power reserve, yellow Rolesor Jubilee bracelet with semi-circular three-piece links, concealed folding Crownclasp buckle. Waterproof to 100 meters. Baselworld 2019 release.