I've only been to the factory three times, I think you've been many times more. So you might be the bigger expert here. I'm not sure about the case for the Tourbograph, but many models, probably even most models, are one craftsman produced. This is mainly the movement. Sometimes the watchmaker installs the dial, sometimes the watchmaker even cases the movement. But I would say most watchmakers are just assembling the movement, then the movement goes to a team of testing and quality control people. Then there's probably another team to case movements. I don't remember everything that I saw, and things have probably changed since the last time I was at the factory which was many years ago. True, if Lange wanted to put more watchmakers on the project, they could finish sooner, but those other watchmakers are still busy with other models such as the honey gold spilt seconds model from last year!