Color: Walnut 2 years warranty The cuckoo calls once every half hour and on the hour the number of hours. The clock has a mechanical movement. This cuckoo clock features a very realistic cuckoo clock painted exclusively by hand. It is also accompanied by a certificate of authenticity from the Coucous Association of the Black Forest (VdS). Wooden dial, wooden cuckoo, wooden hands, bird door has metal hinge. System prevents cuckoo from singing at night. The cuckoo 8 days must be raised once a week, that means you pull the chains until the weight is back at the top. The size refers only to the clock, without pendulum and weight. Sound