The H1's are a completely different style of beadlock then what you are thinking about. You are thinking about the more common style where there is a retaining ring only on the outside lip that holds the outer bead.
On a H1, all of the beadlock comes from the insert (magnesium insert/run flat typically stock, PVC style common aftermarket). If you do not have the insert the H1 wheel is no different than a normal 16.5 tire with the exception that you can unbolt the two pieces.
Basically, you have 3 pieces - inner shell, outer shell, insert. You have to have the inner and outer shell otherwise there is no way to put a tire on it. Whether or not you have the insert determines whether it is a beadlock or not, but I believe you can run the wheel without the insert (correct me if I'm wrong).