This video shows one complete cycle of the narrative. The movement will run for about 45 minutes before it needs rewinding. (This is done by pulling the brass ball down, which rewinds the weights on the barrel.) The artist designed the movement himself, and machined most of the components using a Sherline lathe and standard drill press. The woodwork is oak and the brass imagery was acid-etched.
This is some truly amazing work.
You can see many photographs of A Mechanical Prayer on New Gottland's facebook page.