Artificial Horizon Wall ClockEach of the 2060 Series 6″ Wall Clocks are made to simulate as closely as possible a primary flight instrument. Each Clock features the actual shape of an aircraft instrument and a dial which closely represents that of a the particular flight instrument. Features:Injection molded from high impact styrene and features a real glass lens for durability and scratch resistance. A high quality American made Quartz clock movement is used for accuracy which will provide many years of reliable service best performance please use a high quality Alkaline battery “AA” alkaline battery required. Dimensions: 6.5″ x 6.5.