After reading and watch the video about the Antikhythera Clock, I am curious if the design reference (or better yet the instruction manual) is available as OpenSource.
Why? Because it would be cool to have one of this sitting on top of my desk.
If you could not get it, then you might try Hans Andersson's clock :) http://tiltedtwister.com/timetwister.html
And here's the instructions manual: http://tiltedtwister.com/tmtwdownload.html