Some of you may have seen the case of Rolex collectors and authority James Dowling being sued by a UK collector for watches being "overpriced or counterfeit" https://omegaforums.net/threads/james-dowling-fake-rolexes.42842/ I've never met James Dowling, but have heard of Rolex themselves using his to authenticate watches....this is not an unknown collector with a corner store. The vintage world is full of risk, because many brands- including Heuer- did not meticulously catalogue their watches...not surprising, as they were struggling for survival. Same goes in the Heuer world. Take a look at this dial Conventional wisdom would be that this is a fake..but, the watch comes from Nic Green, one of the most respected dealers and collectors of Heuers. Nic has a fantastic collection of rare Heuers and dials...certainly not someone whose opinion should be dismissed lightly. Nic does not sell fakes. I don't know enough the Rolex case to have a view..and I don't have a definitive opinion on the all-blue dial above. But it does speak to the challenges of vintage watches and vintage Heuers....which of the rare models are rare/ prototypes/ special editions...and which are straight fakes?