Atom Clock - Powered by a reliable Quartz Crystal mechanism, this substantial wall clock is readable from across the room. Featuring the classic "Atom" symbol, it also has a 24 hour scale. The body is made of 3/4" melamine covered particle board with laminated edging. The pattern is incised with a CNC router. Size: 12" x 12" (30 cm x 30 cm). A battery is included.