The Tissot PRX T1374072103100 is driven by the automatic Powermatic 80.111 movement, offering an impressive power reserve of up to 80 hours and equipped with an antimagnetic Nivachron balance spring. https://saicreationswatches.com/products/t1374072103100-tissot-unisex-t-classic-prx-powermatic-80-watch-for-men