International Association of Athletics (IAAF) World Championships


Since 1985, the IAAF invited Seiko to be its timing partner for all their major international athletics championships and to this day is the only choice for all IAAF Championships, supplying timing and measurement services to over 150 IAAF events in every corner of the globe, with a Seiko team of over 40 skilled and full time engineers.

Seiko are proud to support the Junior and Youth Championships, timing and measuring generations of great athletes from the very start of their careers.

Seiko provides state-of-the-art timing and measurement equipment, designed especially for athletics at the highest level, including false start detection systems, electronic distance measurement devices and transponder timing systems for both track and out-of-stadium races.


At each IAAF event, Seiko’s team of specialist timing engineers is present, delivering the precise and instantaneous timing data on which the sport depends. Our task is to measure greatness, and we are dedicated to delivering to the IAAF the very best timing service at each and every championship.

Seiko have recorded some of the greatest ever athletics performances including, in 2009,  Usain Bolt’s spectacular 9.58s world record in the 100m.  The devices Seiko uses in athletics are accurate to 1/1,000 of a second, which is ten times more accurate than is required by the IAAF rules.

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At marathons, in sports clubs, stadia and at many other sports venues and events, the Seiko Sports Timer has displayed the time of athletic performances all over the world. Thanks to its reliability, high visibility and versatility, it has become an icon in the world of sports equipment. Now, this famous timer is re-born in miniature as an alarm clock.

Shop the iconic clock here.