Round Wall Clock, 13.5" Overall Diameter, Black Case, 1 Aa (sold Separately)Large face makes this clock easy to read from a distance. Clean text style provides an elegant simplicity. Designed to get the most out of every battery. Quartz movement helps ensure accuracy. Crystal clear convey plastic face is shatter resistant. 1 AA battery (sold separately). Display Type(s): Analog; Movement Type: Quartz; Time Format: Standard (12 Hour); Shape: Round.