Tissot Supersport Chrono T1256173605100. 316L stainless steel case with rose gold PVD coating. Swiss quartz. Battery type Renata 394. 30-minutes and 1/10 of a second counters, ADD and SPLIT functions, central 60-seconds chronograph hand, EOL (battery end-of-life indicator). Interchangeable quick release bracelet, standard buckle.