The Frank Lloyd Wright Liberty Indoor/Outdoor Wall Clock design is adapted from the Liberty Magazine covers that Wright produced in the winter of 1926-1927. The designs were considered to be too avant-garde and were never published. Great for both indoors and outdoors, including high humidity locations. This clock includes a molded weatherproof case in a rubbed bronze finish, a gasketed protective glass lens, a silent sweep quartz movement, and automatic light sensors that light the reflective ink on the dial. Diameter: 14”. Depth: 3”. Uses (1) AA battery for the silent sweep (no ticking) quartz movement and (4) D Batteries to power the lights. (not included) From the Frank Lloyd Wright Collection by Bulova.