ROLEX Daytona  Gold / green 116508 Oil / Acryl painting on Linnen canvas

The Rolex Cosmograph Daytona is a mechanical chronograph wristwatch designed to meet the needs of racing drivers by measuring elapsed time and calculating average speed. Its name refers to Daytona, Florida, where racing flourished in the early 20th century. It has been manufactured by Rolex since 1963 in three distinct generations (or series); the second series was introduced in 1988, and the third in 2000. While cosmetically similar, the second series introduced a self-winding movement , and the third series brought manufacture of the movement in-house to Rolex.

The first series included an “exotic” variant dial now known as the Rolex “Paul Newman” Daytona, named after the famed actor, who received the watch as a gift from his wife, Joanne Woodward, and popularized it by wearing it consistently while pursuing his racing career. Years later, the actor’s watch, which had been gifted to his daughter’s boyfriend in 1984, was sold at auction in 2017 for a record (for wristwatches) $17.8 million. (As of December 2019, the most expensive watch ever sold at auction (and wristwatch) ever sold at auction is the Patek Philippe Grandmaster Chime Ref. 6300A-010, fetching US$31.19 million (31,000,000 CHF) in Geneva on 9 November 2019.)

The current Cosmograph Daytona is equipped with a tachymetric scale, a sweep seconds hand for reading to 1/8 of a second, and elapsed-time hours and minute displays. Its Rolex calibre 4130 has the particularity of using a vertical (rathen than lateral) clutch to activate the chronograph, and was engineered to feature a reduced number of components for greater reliability. With a 40mm case, it is available in a variety of materials.
source; wikipedia.org