Rolex bi-metal Oyster Perpetual Cosmograph Daytona 116523. Automatic chronometer chronograph 4130 calibre movement. Black dial with black sub dials. Functions: Centre hour, minute and seconds hands, small seconds hand at 6 o’clock. Chronograph (centre hand) accurate to within 1/8 of a second, 30-minute counter at 3 o’clock and 12-hour counter at 9 o’clock. Stop seconds for precise time setting. Yellow gold bezel with engraved tachymetric scale. Bi-metal Oyster lock bracelet. Box and Rolex service papers dated August 2018.