This clock is useless, especially not for telling the time.
It watches time go by and lets itself be transformed by it second after second,
its aspect changes constantly and will never be the same.
The arrangement of the balls is always random. The tiny avalanches that occur all the time are always due to a single marble, which is the weak point of the whole in balance. It is therefore a game to try to find it before they go down. The spectacle is repeated every 20 seconds or so.