Hi SJX,
The Breguet Tradition tourbillon does not have a constant force escapement. Perhaps Suitbert or someone could clarify the distinction, but a fusee is different from either a constant force escapement or a remontoire.
Also, the De Bethune DB24 does not appear to have a variable inertia rotor, but rather a variable efficiency automatic winding system. It's not clear from the picture how it works exactly (switching from bi-directional to uni-directional?), but it's not possible to adjust the inertia of the rotor via the winding crown. I'd love to learn more about it however.
Lastly, in the Moser Strauman double hairspring balance assembly, both hairsprings are flat rather than having Breguet overcoils.
Ok, those are all the nits I have to pick. Thanks again for the great report and pics! Do you happen to have a wallpaper sized (1024x768) version of the 1st Tradition tourbillon pic?
_john