Howard Miller Sunburst Clock This 22.5" wall clock is designed for indoor or outdoor use. Sunburst frame is made of metal with a powder-coated case, tempered glass, and rubber seals protect the inside of the clock from inclement weather. Two additional dials indicate temperature and relative humidity. An off-white dial features black Arabic numerals and black hour and minute hands. Quartz, battery-operated movement requires one AA sized battery (not included) Diameter 22.5" (57 cm) Depth 2.5" (6 cm)