While many of us today do still have sundails as garden decorations there are no water clocks to be found. Instead we have spring wound clocks, electric clocks, electronic clocks, computer clocks, and very fancy laser and atomic clocks. Very evolved have clocks become.And every single one -- including the ancient sundail and water clock artifacts -- designed by designers.
Clocks, however, do not reproduce imperfect copies of themselves, and are thus not equipped to evolve on their own.
The analogy fails.
Computer chips are used both to design and control the the manufacturing of other chips, it is practically possible to design machines that produce themselves, and even do so with "random" changes. Such machines could include a clock part.
The analogy succeeds again!