Using your Diesel DZ4603 watch is easy. Just look at the dial to check the time, use the subdials for extra time - tracking, and peek at the date window to know the day. For setting the time and date, gently pull out the crown and turn it. When you're done, push it back in. Since it has 50m water resistance, it can handle splashes and short swims, but avoid long - term submersion or high - pressure water situations like diving. To keep your watch looking great, wipe it with a soft, dry cloth regularly. If the leather strap gets dirty, you can use a mild leather cleaner. Store it in a cool, dry place when not in use, and avoid exposing it to extreme temperatures or chemicals.