Introduced in 1963 the Oyster Perpetual Cosmograph Daytona was designed for professional race car drivers but quickly became one of the most iconic watches Rolex has ever made. At the heart of this 40 mm stainless steel watch case is the Rolex Calibre 4130 self-winding mechanical chronograph movement featuring a center chronograph second hand accurate to within an 1/8th of a second. The dial is silver with luminescent markers featuring three sub-dials, the dial at 6 o’clock is the second hand for the watch, the dial at 3 o’clock is a 30 minute counter and the dial at 9 o’clock is a 12 hour counter. The scratch resistant sapphire crystal is elegantly framed with a fixed Tachymetric bezel crafted in 18 kt. yellow gold. The bracelet is the signature three piece Oysterlink design with a center row of gold links bordered by brushed steel links securing on the wrist with the fold over Oysterclasp featuring the 5 mm comfort extension link.