Using your Tissot PRX Powermatic 80 watch is easy. Just put it on your wrist and it'll start working thanks to its automatic movement. Keep it wound by wearing it regularly. For best results, wear it for a few hours each day to maintain the up - to - 80 - hour power reserve. When you're done wearing it, you can place it on a watch winder. Be careful not to expose the watch to extreme temperatures or strong magnetic fields, as these can affect its performance. To clean the watch, use a soft, dry cloth. For the bracelet, you can use a mild soap and water solution, then dry it thoroughly. If you want to change the bracelet, use the quick - release feature, but be gentle to avoid any damage.