Features: Black/white dial. Separate hands indicate 12 & 24 hour time. Independently set a 12-hour time scale as well as a 24-hour time scale.  Injection molded high impact polystyrene case. Snap in polystyrene lens. High quality American made Quartz Clock Movement. One "AA" battery required (High quality Alkaline battery recommended for best performance). Dimensions: 10" diameter