Which escapement was crucial for the massive, weight-driven mechanical clocks emerging around the 13th and 14th centuries?

Answer

Verge and foliot escapement

The development of the verge and foliot escapement, dating to around 1275, was the crucial development that allowed for the operation of these massive, weight-driven mechanical devices.

Which escapement was crucial for the massive, weight-driven mechanical clocks emerging around the 13th and 14th centuries?
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