I wonder why nobody has answered this yet. Well all I remember is seeing a pictorial on one once and the movement appeared to be decorated. However since then I have seen the Asia 21j version and noticed that the pictorial probably was a nickel ETA with the outer part, part of the case or maybe some sort of insert to hold the movement in, was engine turned. Still looked nice though, however the ETA looked a lot nicer. But it isn't like you're going to see that part of the watch anyway unless you take it apart.
It looks good to me, I doubt there's any big differences between it and the gen. From all I had seen, the bezel looked superb and so did the crown and case. I considered purchasing one. Can be a tough choice between SOSF and super ocean heritage imho. I just got a SOSF and it is more sporty than the heritage to me. I think the heritage would go better with a suit.