Ball Clock II 42" Modern Wall Clock This 42" diameter oversized retro gallery wall clock is an adaptation of a classic 1940s George Nelson design. The center is finished in brushed nickel and is surrounded by 12 black satin balls on nickel-finished rods. Black satin-finished hour and minute hands. Quartz, battery-operated movement requires one AA sized battery (not included). Diameter 42" (107 cm) Depth 3" (8 cm)