Magnets & ferro fluids, excellent.
Because of the video, I can literally see through the box into the 7 segment magnet chunks moving with the servos when the time ticks over. I like the simplicity & the way the tick flows into shapes.
@damjanstankovic: can you throw up a Cinegraph/GIFV below the fold or something, so that the flow is clearly visible before we even head into the video itself?
Like a 1,2,3...9 sequence for the last digit, because the beauty of that should hit the next person who clicks this.