40mm 18K white gold case, screw-down back, screw-down crown and push buttons with Triplock triple waterproofness, fixed 18K white gold bezel with engraved tachymetric scale, scratch-resistant sapphire crystal, blue dial, index hour markers, Rolex calibre 4130 self-winding movement with chronograph central second hand, approximately 72 hours of power reserve, 18K white gold Oyster bracelet , folding Oysterlock buckle with Easylink 5mm comfort extension link. Waterproof to 100 meters.