Mechanical Movement: Operate without battery, automatic self-winding.However, proper manual winding is indispensable,which can effectively reduce time deviation.(Note: Mechanical watch is different from quartz watch. Insufficient mechanical kinetic energy will cause the watch to stop, please winding it in time.) Business Watch: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 Watch (30 M):handwash,swimming, no problem ! NOTE: Please Do Not press any buttons in the water or wear this watch for longtime underwater activities such as diving, ect. Purchase without Worry: Please don't worry any problem. All our men 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. It can be easily matched with a variety of clothing, suitable for all occasions.
