Here’s a very clear and concise description and presentation of movement of Chaotic-Tock. It calibrates thirty seconds after 12:00 and then moves every minute.
Here’s how it goes: Each dot after the minute number is a minute after the previous dot and the first dot means one minute after the number that represents that minute.
If the above sentence doesn’t make sense to you, here is a much simpler video example. There is absolutely no music or sound in the video. We thought it would lower your concentration while tracking the pointers. Which don’t move anyway.