Hi, the famous orange dial Doxa sub series are only available for sale through their official website. As far as I know they are not sold in store. Some of the subs are limited edition. However you can still find pre-owned or new ones through the Bay. But be careful when you buy new from the Bay, the warranty is not transferable so you are not covered eventhough it is a new watch.
As for the doxa you see in our local shopping mall, they are the Asian mass produced models mostly quartz versions.