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turret clock
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 churches town halls and other public buildings. Clocks were not referred to as turret clocks by clockmakers until recent times, often old clocks were recognised as turret clocks by their location.
A true turret clock has mechanical and latterly electrical power and therefore sits late in the ''history of timekeeping''. The following timeline of clocks is not comprehensive but does indicate the placement of turret clocks.
==History==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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