Jacques Lemans Men's Automatic Stainless Steel and Leather Dress Watch(Model: GU147C-ABR06C) Quality Automatic movement; Functions without a battery; Powers automatically with the movement of your arm Sapphire crystal Case diameter: 42.5 mm Stainless-steel case; Blue dial; Date function Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving