Using your TAG Heuer Aquaracer is easy. To set the time and date, gently pull out the crown. Turn it clockwise or counter - clockwise to adjust. When you're done, push the crown back in. This watch is water - resistant up to 200m, but avoid using it in hot water or saunas as it may affect the seals. For maintenance, clean the watch regularly with a soft, dry cloth. If you notice any issues, take it to an authorized TAG Heuer service center.