In 1972 Meccano introduced the clock kits 1 and 2. Kit 1 was a simple weight driven pendulum wall clock and kit 2 was a more ambitious version and included a fairly complicated mechanism for striking the hours.
The functionality of the striking mechanism of clock kit 2 is in my opinion however not very reliable.
I designed and built a new striking mechanism, partly based on the concept of clock kit nr 2.
The full story of my experience, including analysis of aforementioned proposition can be read in Modelplan 178, available at MWMO