Overstock Watches, Tissot timepieces have been worn by a bevy of celebrities over the years--including Grace Kelly, Elvis Presley and Nelson Mandela--and James Stewart's character L.B. Jefferies wore a Tissot timepiece in Alfred Hitchcock's "Rear Window." Today the company is represented in a variety of sporting fields by English soccer star Michael Owen, IndyCar driver Danica Patrick, and MotoGP world champion Nicky Hayden. Today, Tissot is a member of the Swatch Group, the world's largest watch producer and distributor.