Of course, his tourbillon tri series is my favorite (specifically that custom guilloche he uses on the back them, it's incredible).
But this display made me realize- I really, really like his tempus vivendi series! That double headed Russian eagle- with the
wings moving for time, just, wow. It looks like a device I would want to find in a lost vault hundreds of years from now, in some
obscure location- just a fantastic concept. Retrograde with normal hands was always nice, but this is so much better.
Now I'm thinking of all the things he could make with two arms to tell the time. A 3 headed Hydra, the middle inert perhaps?