Yep, it's authentic. I remember discussing this very watch on another forum. Whilst the dial on your watch differs from the dial shown on the OVD, I wouldn't be overly concerned as the OVD doesn't show all dial variants. In addition, the dial shown under your reference in the OVD is a Seamaster Geneve so they've stuffed up there. The GP version of your watch has exactly the dial you have on your watch. The movement is correct as well. Yes Canberra Omega, this opinion is different to my original but I've had some time to think and stew over this one and I concede, you're probably right!