Using your Tissot PRX Powermatic 80 watch is simple. Just wear it on your wrist, and the automatic movement will wind itself as you move your arm. The watch has a power reserve of up to 80 hours, so if you take it off for a short period, it should still keep running. When it comes to the interchangeable quick - release bracelet, you can easily swap it out for a different style to match your outfit. For maintenance, keep your watch away from extreme temperatures and magnetic fields. Wipe it gently with a soft cloth to remove dust and fingerprints. If you notice any issues with the timekeeping or the movement, it's best to take it to an authorized Tissot service center for a check - up.