This clock is astounding on many levels: complexity, beauty, and craftsmanship. What is perhaps even more astonishing is that it is only 25% complete! About 2000 of the expected 8000 parts have been assembled. The finished product will be truly incredible.
From the Youtube description:
What you see is about 25% of the completed clock movement in terms of parts count, about 2000 of a total of 8000 parts. This project has been in construction for about 1.5 years and has another 2 to go. Much of the most difficult subassemblies are done as the going train contained a large amount of novel mechanical concepts: dual remontoire mediated by differential, dual escape wheels, compound fly fans, compound going barrels.
[ Thanks New Gottland! ]