Hi Bob, are you sure it´s a Tourbillion ? Can´t identify that the balance and escapement of the movement shown can turn on a common axle within the revolving cage I am missing too. Am I wrong ??You have a beautiful, old pocket watch there! With the tourbillon complication, it was most likely a higher end watch. With no disrespect to this forum, you might want to post this question with photos at thepurists.com, watchrap section. I believe you may get more responses there. I'd like to see a clearer view of the dial also.