Using your Tissot Desir watch is easy. Just put it on your wrist and adjust the strap to fit comfortably. The watch will start working right away once the battery is installed. To keep track of time, simply glance at the dial. When it comes to the battery, don't worry about running out unexpectedly. The watch will let you know when it's time for a change. For maintenance, keep your watch away from extreme temperatures and humidity. Clean it gently with a soft, dry cloth regularly. Avoid hitting the watch against hard objects as it might damage the case or the crystal. If you have any issues, it's best to take it to a professional Tissot service center.