Japanese quartz movement. Material: High hardness mineral glass (Key scratch resistant), stainless steel case back,compressive and abrasion resistance.The watchband is made of Zinc Alloy,comfortable to wear. Waterproof Function: 98ft (30m). But please don't press the buttons in the water.. Gifts: The watch is suitable for every occasion (outdoor, business, party), also a great gift for family and friends. Good Service: If you are not Satisfied with the Product, You can Return within 30 days at any Time.