Engstler Cuckoo Clock 403Q Engstler Quartz Cuckoo Clock 403Q: A cuckoo clock is a type of clock, typically pendulum driven, that strikes the hours with a sound like a common cuckoo call and has an automated cuckoo bird that moves with each note. Some move their wings and open and close their beaks while leaning forwards, whereas others have only the bird's body leaning forward. The mechanism to produce the cuckoo call has been in use since the middle of the 18th century and has remained almost without variation. Pendulum clocks must be stationary to operate. Any motion or accelerations will affect the motion of the pendulum, causing inaccuracies. Engstler Black Forest Clocks The first cuckoo clocks were manufactured in the Black Forest during the 18th century. The name ENGSTLER stands for a flexible family enterprise which has been lead modernly for generations. By linking tradition and innovative technology we are able to present not only mechanical cuckoo clocks, but also, t...