Using your Diesel DZ4282 watch is easy. Just set the time and date as you would with any normal watch. For the chronograph function, use the buttons on the side to start, stop, and reset. When it comes to care, keep it away from extreme temperatures and magnetic fields. To clean it, use a soft, dry cloth to wipe the case and strap. If it gets wet, dry it thoroughly. Don't open the case yourself, as this could damage the watch. Also, when swimming or in water, make sure the crown is properly screwed down to maintain water resistance.