Using this Tag Heuer Carrera watch is a breeze. Just wind it up initially to get the automatic movement going. After that, the natural movement of your wrist will keep it running. To set the day and date, use the crown on the side of the watch. When it comes to care, avoid exposing it to extreme temperatures or magnetic fields as these can affect its performance. Keep it clean by gently wiping the case and band with a soft, dry cloth regularly. For the leather band, don't get it wet often as it can damage the leather. If you notice any issues with the timekeeping or the movement, it's best to take it to a professional watch repairer.