and sporting bodies together develop more accurate systems for specific events. In competitive cycling, for instance, sensors are placed on the bikes and track, and linked by computers to provide track timings and performance data. Motto and slogan The company motto/slogan of Tissot is "Innovators by Tradition" and its mission statement is "gold value at silver price". Watch manufacturing Notable inventions Tissot introduced the first mass-produced pocket watch as well as the first pocket watch with two time zones in 1853 and the first anti-magnetic watch, in 1929–30. Tissot was also one of the first companies to manufacture an antimagnetic wristwatch in the early 1930s. The Tissot company was also the first to make watches out of plastic (Idea 2001 in 1971), stone (the Alpine granite RockWatch in 1985), mother of pearl (the Pearl watch in 1987), and wood (the Wood watch in 1988). Tissot introduced its first tactile watch, with "T-Touch," technology in 1999; watches containing this technology have touch-sensitive sapphire crystals to control various functions including compass, barometer, altimeter and thermometer. The 2014 T-Touch Expert Solar and T-Touch Lady Solar had 25 functions. Gallery Marketing Tissot has partnered with a wide range of celebrities from basketball players, actors, cricket players, to MotoGP racers to be their brand ambassadors. Tissot brand ambassadors have included: Tony Parker, Liu Yi Fei, Virat Kohli, Deepika Padukone, Huang Xiaoming, Jorge Lorenzo, Thomas Lüthi, Neha Kakkar, Marc Márquez and Rana Daggubati. Clientele Tissot watches have been worn by the Princess of Wales, Sarah Bernhardt, singer Carmen Miranda, Grace Kelly, Elvis Presley, and Nelson Mandela. In popular culture James Stewart wore a Tissot watch in Rear Window. T-Touch watches have been worn by Angelina Jolie in the movies Lara Croft Tomb Raider: The Cradle of Life and Mr. & Mrs. Smith. Simon Pegg wore a T-Touch in Mission: Impossible - Rogue Nation.. Richard Roundtree appears to wear a Tissot PR 516 with steel rally bracelet in Shaft. Sponsorships Tissot has been the official timekeeper responsible for timing in several sports including MotoGP, the International Ice Hockey Federation, the Union Cycliste Internationale, the International Basketball Federation (FIBA), the International Fencing Federation, the Women's National Basketball Association, for many years. In basketball it has sponsored the Swiss national team, the Chinese Basketball Association, the NBA and other related events, teams, and organizations. On November 20, 2019, it was announced that Tissot would serve as the official timekeeper