Imported Japanese movement : high quality Japanese automatic movement; no battery function; automatic power supply with arm movement. (Note: When the arm is at rest in the evening, the mechanical watch will stop moving. The next morning, you need to pull out the crown and rotate it 20 times clockwise to work normally.) Material and Features:High quality electroplated case,Do Not Fade.High hardness mineral glass can effectively prevent wear,Durable full steel case and Band provide you comfortable wearing experience. Waterproof 50M : Generally speaking, it can withstand splashing or short-term immersion in water, but it is not suitable for hot water bathing or diving. Please do not press any button in the water. Purchase without Worry: Please don't worry any problem. All watch are enjoy 12 months product quality maintenance and 30-day replacement . Come with a black stylish box and a microfiber . Best Gift: stylish watch as a gift, a good choice. Designed for yourself, family, husband, brother, colleague, friends. LIGE watch can be easily matched with a variety of clothing, suitable for all occasions. Product Description