Concord Men's Automatic Stainless Steel Casual Watch(Model: 0310108) Quality Automatic movement; Functions without a battery; Powers automatically with the movement of your arm Scratch-resistant-sapphire crystal Case diameter: 38 mm Stainless-steel case; Blue dial; Date function Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion