Tissot Watch PRX 35mm T1372101111100. In 1978, the Tissot PRX was born. It is time to celebrate its comeback. The Tissot PRX is a watch for those with passion for design and an eye for ingenuity, with a sophisticated timeless retro look. A tapered and slim case and a solid, yet ergonomic stainless steel integrated bracelet make the PRX an iconic blast from the past but a modern sophisticated piece. The new PRX is exactly the same size as the original watch from 1978: 35mm - making it even more desirable. Discover this version with a white mother-of-pearl dial for a feminine and classy look.