Gorgeous atomic walnut wood wall clock features a pillow shaped MDF case with a rich walnut finish. Spun aluminum bezel. Convex glass lens. White dial with applied silver numbers at 12, 3, 6, and 9 and applied markers at the other hour positions. Black hour and minute hands, silver second hand. Measures 12.5" H x 12.5" W x 1.5" D. Using the same technology NASA employs to tell time, Atomic clocks wirelessly synchronize with the National Institute of Standards and Technology's atomic clock in Boulder, Colorado. In addition to daily confirming the time, these clocks automatically adjust for Daylight Saving Time and run up to two years on a single AA battery. No wires, no worries, and no more excuses for being late.