The Tissot 2481 watch movement, developed in collaboration with Buren, Breitling, and Heuer during the period of 1969-, is equipped with a module called Dubois-Depraz 8510, which is mounted on a modified Buren 1281 base. Noteworthy features include a crown positioned at 9 o'clock, a micro rotor, and a double excenter regulator for curb pins and stud carrier. Additionally, the indirectly driven minute hand enables a low profile design. The movement offers several functions, including an automatic chronograph with 60-second, 30-minute, and 12-hour counters that are cam switched. It also incorporates a date function, which can be adjusted by changing the 21-24 hour marker.