Using this TAG Heuer Carrera watch is easy. Just wear it on your wrist and adjust the folding clasp push - buttons to fit comfortably. To keep it running smoothly, wind it gently if it stops or has been sitting idle for a while. When it comes to maintenance, avoid exposing it to extreme temperatures, water (it's not waterproof unless specified), and strong magnetic fields. Clean it regularly with a soft, dry cloth to keep the steel case and band looking shiny and the white mother - of - pearl dial free from dust. If you notice any issues with the timekeeping or movement, it's best to take it to a professional watch repairer.