The hydraulic clock of Archimedes
(the first clock with tickings in human history)
Archimedes
Syracuse, Sicily, c.287 – c. 212 BCE
It was a complex hydraulic clock with many automatically moving objects. It consisted of the central storage container which supplied the water.
https://www.youtube.com/watch?v=L8Keq2eOGEo&feature=youtu.be
Reference