Using this Diesel DZ4600 Baby Chief Chronograph is easy. Just wind the crown to set the time and date. The chronograph function can be started, stopped, and reset using the side buttons. To keep it in top shape, avoid exposing it to extreme temperatures or water for long periods. If it gets dirty, you can gently wipe it with a soft, dry cloth. Don't use harsh chemicals or abrasive materials on the watch. When not in use, store it in a cool, dry place to protect it from scratches and damage.