Black Atomic Contemporary Clock, 16.5" Overall Diameter, Black Case, 1 Aa (sold Separately)
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Maintains its accuracy by automatically matching the National Bureau of Standards Atomic Clock in Boulder, Colorado and automatically setting itself to daylight-saving time. Changing of the hour hand saves maintenance labor in facilities with numerous clocks. Larger dial size makes it easier to tell time from a distance. Slimline design gives sleek, modern appearance. Display Type(s): Analog; Movement Type: Quartz; Time Format: Standard (12-Hour); Shape: Round.