TISSOT T1374072103100 PRX Automatic Watch - Stylish Design with Swiss MovementProduct Highlights The name "Precise and Robust" signifies high precision and durability, and the PRX features a smooth and beautiful line that seamlessly transitions from the case to the wide links of the bracelet, representing a water resistance of 10 atmospheres with the "X." The "Powermatic 80" achieves reliability and accuracy through its innovative Nivachron R hairspring. The movement boasts an impressive 80 hour power reserve. Case size: 40mm