Rolex 116520-78590
Rolex Cosmograph Daytona series, model: 116520-78590, automatic mechanical movement, 40mm diameter, 904L Oyster steel case with stainless steel strap, black dial with luminous stick hour markers, sapphire crystal glass, combining chronograph and tachometer functions, water-resistant to 100 meters, certified by the Swiss Observatory, power reserve of 72 hours.