Bought as 'new old stock' from online watch dealer RLT Watches. I love these huge Sornas just because they are so absurdly over the top. This one is 46mm wide and thick with it, and has a wonderfully excessive colour scheme.
There are no less than three rotating bezels: there's a 'manual' bezel on the outside and then two more on the inside - one for world time and another for elapsed time. The two inner bezels are rotated using the crowns on the left-hand side of the case, the crown on the right dealing with the usual winding/setting functions and the two buttons on the right controlling the chronograph.
The Sorna was supplied on a rather low-rent plastic strap, which I've since replaced with a blue leather Darlena strap.