Using your TAG Heuer Aquaracer is easy. Simply wind the crown gently to start the watch if it's stopped. To set the time and date, pull the crown out to the appropriate positions and turn it. You can wear this watch for swimming or diving as it's water - resistant up to 200m, but avoid pressing buttons underwater. For maintenance, wipe the watch regularly with a soft, dry cloth to keep it clean. If you notice any issues with the movement or water resistance, take it to an authorized TAG Heuer service center. Also, store it in a cool, dry place when not in use to prolong its lifespan.