Using this Tag Heuer watch is easy. To start the chronograph function, just press the top button. Press it again to stop, and the bottom button to reset. When setting the time, pull out the crown and turn it to adjust the hours and minutes. Remember to keep your watch away from strong magnetic fields as they can affect its accuracy. Also, avoid wearing it in extremely hot or cold environments. For maintenance, clean the watch regularly with a soft, dry cloth. If you need to clean the band, use a mild soap and water solution and dry it thoroughly. Taking these simple steps will keep your watch in great condition for years to come.