I found out today that Australia's catch.com.au are now selling Omega. This thread isn't an advertisement for them but a discussion.
I would image these would be considered grey market.
So far, they only have 2 ladies DeVille.
Retail: AU$12,075.00 & AU$20,400.00
Catch sells them for: AU$9446.97 & $16400.37
It would be interested to see if any Omega men's watches will ever pop up there. I see catch as a bit of a USA Costco type store (but online), which I read also occasionally sell Omega.