A steel Rolex chronograph watch, "Cosmograph Daytona", with an oyster 18K and steel bracelet with a folding clasp. Round case with fixed and engraved tachymetric scale 18K gold bezel, diamonds index, mother of pearl dial (3 counters : hours totalizer at 9 o'clock, minutes totalizer at 3 o'clock, small second at 6 o'clock).