PRECISE TIME KEEPING: Japanese Movement, provide precise and accurate time keeping. Japanese battery which can provide the watch strong power. SHOCK RESISTANT: The excellent ABS Plastic case and Stainless Steel case back which enable the watch to be tough and durable. HIGHLY TRANSPARENT RESIN GLASS: The glass is made from the highly clear resin material imported abroad and sealed with the case by high frequency machine. So that the glass is extremely hard and pressure-tolerant. WATERPROOF FOR DAILY USE:50M Water Resistant, HANDWASH, SWIMMING, NO PROBLEM ! Feel free to wear the watch when you are showering, swimming and diving. NOTE: Please DO NOT press any buttons in the water or wear this watch for longtime underwater activities - such as diving, ect. Too much water contact or usage in extreme Hot or Cold temperature will shorter watch life. GREAT SERVIEC:If you have any questions you can contact us,we will try our best to you help you.