An automatic watch is powered by the energy of the person who wears it. Wrist movement enables the mechanism to run. The Powermatic 80 movement boasts 80 hours of power reserve, which is enough to continue telling time accurately even if the watch is not worn for three days. It is an innovative movement that outperforms the competition, whose movements general provide 1.5 days of power reserve. The PRX, as part of Tissot\'s T-Classic collection, measurs at 40mm with a strong and sturdy stainless steel build. The dark blue dial presents stick indexes, three hands and a practical date window towards the 3-o-clock mark. Sapphire crystal protects the case with anti-reflective coating, and provides a see-through caseback. A matching stainless steel bracelet completes the timepiece, with a butterfly clasp with push-buttons.