Howard Miller Optica Clock This optical crystal arched table clock is accented with a brushed and polished aluminum base. White dial with black Roman numerals and hour markers; black hour and minute hands; silver second and alarm hands; and a glass crystal surrounded by a polished silver-tone waterfall bezel. A full felt bottom protects your desk or tabletop. This clock comes packed in an elegant black presentation box. Quartz, battery-operated, alarm movement includes one AA sized battery. Height 5.25" (13 cm) Width 4.25" (11 cm) Depth 1.75" (4 cm)