Wall Clock Analog Clock Movement Type Atomic Arabic Shape Round Overall Dia 12 3/4 in Face Dia 12 in Frame Color Black Basic Power Source Battery Mount Wall Width 12 3/4 in Features Automatically Adjusts In Spring and Fall Modern Slimline Design Only Work Within the United States Four Major Time Zones Pacific Mountain Central and Eastern Precision Time Keeping By Radio Updating Case Material Polystyrene Case Color Black Face Color White Legend Skilcraft Ability One