The U-BOAT Mens Capsoil 45mm Black Case & Green Hour Markers 8840 watch combines a 45mm round shaped stainless-steel case and black rubber strap with a traditional buckle. It has a black analogue dial with luminescent hands which is protected beneath high quality curved scratch resistant sapphire crystal glass. Power is generated by the quartz movement. This model also has a water resistance of up to 50 metres. This watch dial is completely filled with a special oil that emphasizes the dial and creates the illusion of the absence of glass. Watch also features a visible air bubble to compensate the temperature variations. Back of the watch also features a innovative ring locking system that helps for quick battery replacement.