SKILCRAFT Quartz-Movement wall clocks include a quartz movement for extreme accuracy (+/- 2.0 minutes per year accuracy). High-impact plastic frames are made using 30% post-consumer recycled content that will biodegrade in a landfill in approximately 2 years. Clocks include white dials with black Arabic numerals and minute marks, black hour and minute hands. Logo clocks include a white dial, black hour and minute hands, and a brass second hand. Logo clocks include customizable Federal agency and military logos. Clocks can be set manually for use outside U.S. time zones and where Daylight Savings does not apply. Clocks use one AA battery (not included).