Antic Clock

A design inspired by the earliest mechanical clock
It might be as old as 1250
It is not very precise, that is why it has only an hour hand.
It was a major step in technology, being the first mechanical clock.
400 years later, Galileo will think about using a pendulum to improve the precision, it will be almost another 100 years before it becomes reality with Christian Huygens clock
See it Here: https://youtu.be/oX5HK5Vc9do
And here:https://youtu.be/ORaM7y0xu6c