This is an is an advanced astronomical clock designed and calculated by Jens Olsen.
The clock consists of 12 movements which together have over 14,000 parts. The clock is mechanical and must be wound once a week. Displays include lunar and solar eclipses, positions of the stellar bodies, and a perpetual calendar, in addition to the time. The fastest gear completes a revolution every ten seconds and the slowest every 25,753 years.