This clock tower has 5 faces. Why 5, because if you have a flying machine or elytra then you can tell the time by flying over the clock tower. However, there is a small issue with the schematic that I can't figure out why it does this. Whenever you power the clock tower from the base of the structure, it breaks some of the shafts and cogs to run the faces on the North, South, East, and West side. To fix these, make sure the clock tower is running and then place a shaft on each of the lower small cog, then use the built in shaft placer to place 2 shafts and 1 small cog, and then check if the clockface is running. Again, don't know why this is happening, as it even happens in my world if I start and stop the clocktower.