TAG Heuer S.A. is a Swiss manufacturing company that designs, manufactures and markets watches and fashion accessories as well as eyewear and mobile phones manufactured under license by other companies and carrying the Tag Heuer brand name.
The London Marathon is one of the biggest running events in the world, and one of the five top world marathons that make up the World Marathon Majors competition, which has a $1 million prize purse. It has been held each spring in London since 1981.