Colour: Walnut Executions: Premium Wooden dial and hands, nice-carved bird, night shut off, old made brown chains, door of the bird is made with an metal hinge, case with extra deep carvings. Sound The cuckoo calls every half hour once and the number of the hours every full hour. This cuckoo clock has an exclusive life-like wooden handpainted cuckoo. With certificate of authenticity from the Black Forest Clock Association (VdS). It has a mechanical extreme long-life rack strike movement. It allows turning the hands left and right without endangering the mechanics of the movement. The 8 day running time movement need to be wind up once a week, that means you pull on the chains until the weights are up. The size refers only to the clock, without pendulum and weights.