This wall clock belongs to our huge Automaton series but the main difference is that now some of the gears (which are shown on the pic) move smoothly and silently together with the clock mechanism. This beautiful effect of motion doubles because of the mirror back layer. The gears are powered by 4 AA batteries. Moreover this Automaton wall clock is much bigger than the other ones.An automaton (plural: automata or automatons) is a self-operating machine, or a machine or control mechanism designed to follow automatically a predetermined sequence of operations, or respond to predetermined instructions.Some automata, such as bellstrikers in mechanical clocks, are designed to give the illusion to the casual observer that they are operating under their own power.wikiOur wooden clock is made of many layers of Baltic birch, wood stained, acrylic painted and covered natural bee wax.Handcrafted galvanized brass screws are used in the clock.The clock can be personalized (any text on clock face instead `Automaton`).Size: 370mm (14.6 in)**AA battery is not included***the clock hands can slightly differ from those on the pics