NBA superstar LeBron James has partnered with Swiss luxury watch company Richard Mille for a good cause. ... More in Celebrity. Rosie Roche, Cousin of Prince Harry and Prince William, Dead at 20. E!

Jay-Z was not the only high-profile celebrity seen wearing an expensive designer timepiece. Tom Brady was seen wearing a Jacob & Co Caviar Tourbillon watch valued at $740,000, according to the brand.

Richard Mille introduced the first timepiece in 2001 in an initial series of 17 watches. Each of its pieces is finished and assembled by hand, according to its website.