BINLUN Men's Watch Quartz Leather Sports Chronograph Watches for Men 30m Waterproof Casual Stylish Wrist Watch with Calendar Date Quartz movement keeps the time much more precisely than automatic watches does. 3 ATM(30 M) waterproof, withstands splashing water and rain. DO NOT press any button under the water.Please notice that watch should be dried after it's wet to protect to watch. Black soft and comfortable leather strap with quick release spring bar. It allow you to swap bands in seconds to compliment your wardrobe or mix and match with other leather quick release watch bands to take your timepiece from different occasions. Simply slide quick release knob with finger as shown in diagram. Chronograph stopwatch function,calendar date function, black stainless steel case, simple strap buckle Size Specification, Case Thickness: 11.4 mm(0.45 inch); Case Diameter: 42 mm(1.65 inch); Band Width: 22 mm(0.87 inch). You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!