Rolex Day-Date President watch, polished round 18kt yellow gold case with screw-down Twinlock winding crown, polished fluted 18kt yellow gold bezel, 18kt yellow gold President bracelet with solid links and hidden clasp, black dial with luminous index hour markers, day calendar at 12 o'clock, date calendar at 3 o'clock, 31 jewel Caliber 3155 self-winding mechanical Oyster Perpetual COSC certified chronometer movement, scratch-resistant sapphire crystal, water-resistant to 100 meters.