Tissot PRX Powermatic 80 automatic watch Black dial steel bracelet 40 mm

It was at the end of the 1960s that Tissot took advantage of the wind of liberation from standard shapes to propose watches with trendy colours and a pop design. It was not until 1978 that the PRX collection was born, with a tonneau-shaped case, a smooth round bezel and a quartz movement, all carefully integrated into a steel bracelet. It was only a few years later that the brand decided to register the name PRX: "P R" for Precise and Robust and "X" or 10 in Roman numerals for the water resistance of the watch at 10 ATM (10 bars or 100m).