Yes, thank you Der Amf.
As I said before, the rotating bezel - as you correctly assume is, indeed connected to the 12h ring - may be used to time intervals of time or a second time zone. That was pointed out by Omega in the original catalogue.
The watches - re-edition and original - are aesthetically identical, including the seize of the case. The obvious differences are the crown - the catalogue drawing had the exact same crown as the re-edition - larger on some production models and the hands, now with the cathedral shape. Nevertheless, during the original production time frame, these hands were also used.
The single difference - kept in all original production models and changed in this re-edition - is the longer marks on the inner minutes track, making the effective dial a bit smaller, but also more balanced.
Jazzmaster's question is still valid. Why the need for two parallel minutes tracks?! Still figuring that out...