In 1963 Rolex debuted in the motor racing competition with the Cosmograph Daytona line with the Ref. 6239. The early models and later production in the next 25 years since its launch, were fitted with manual-winding movements from external manufacturers.
Towards mid to late 80’s though, there was a clear trend towards self-winding watches. The thing was that creating a self-winding chronograph movement from scratch is no easy feat. Rolex needed a solution and it came in the form of the Zenith "El Primero" calibre 400, considered the best self-winding chronograph movement available on the market, becoming the clear choice for Rolex who only partnered with the best.
The Ref. 16518 was introduced approximately in 1992.
The Rolex Cosmograph Daytona "Zenith" takes its nickname from the fact that it’s powered by a Zenith "El Primero" calibre.
On the Daytona "Zenith", the dials were now lacquered and glossy.
They also featured applied metal hour markers inlaid with luminous material. And the sub-dials had a thin outer track of an opposing color, each ringed with a metallic edge.
Protecting this new dial was a sapphire crystal, used for the first time on a Rolex Daytona.
This Awesome piece comes with Box,Outer box, Rolex Warranty paper, Rolex silk handkerchief, leather warranty holder.