Have managed to find an Oris I'd been after on chrono24.
Seller uses the trusted market feature so feel ok about going for this one. Its listed as condition 0 - unworn and with full 2yr manufacturer warranty.
But I have managed to trace them as being a Ltd company that's actually one guy selling out of his spare room.
Not an issue of itself... but if he's not an AD then will the warranty actually be valid?