Round Slimline workstation clock features quartz movement, black Arabic numerals and minute marks, black hour and minute hands and a red sweep second hand. Uses one AA battery, not included. Available with Federal and military logos. All plastic clock frames will biodegrade within an average of 2 years in a landfill environment (reference ASTM D5511.) Plastic bodies contain 30% post-consumer recycled content. +/- 1/3 accuracy/day.