Using your Diesel DZ4581 Mega Chief watch is easy. To check the time, just look at the main analogue display. The chronograph function can be used to time events. Press the buttons on the side to start, stop, and reset the chronograph. The date window shows the current date. When it comes to maintenance, keep your watch clean by wiping it with a soft, dry cloth regularly. Avoid exposing it to extreme temperatures, chemicals, and sharp objects. If you get it wet, dry it thoroughly as it has a 30m water resistance but it's not suitable for deep - sea diving or prolonged submersion. When not in use, store it in a cool, dry place, preferably in a watch box to protect it from scratches.