Correct maintenance can keep the watch new for long time and long service life. *Please keep the watch well after use. *Never expose the device to strong sunlight, fire or strong force to avoid damage. *Never place it near flammable substances and avoid contact with acidic, alkaline or corrosive organic solvents and keep it away from sharp objects during storage to avoid scratches. *Keep away from chemicals, sweat, bath and other items to avoid damage. And we consider the high quality and better guarantee as the most important. * It is suitable for all types of daily wear