What is a turret clock?

I thought it would  be useful to start off by defining what a turret clock is. From Wikipedia the definition of a turret clock is:- A turret clock or a public clock is a clock that is larger than a domestic clock and has a mechanism designed to drive a visual time indicator such as dials and or bells as a public amenity. Turret clocks specifically had mechanisms mounted high in a building often a purpose built tower such as […]