Just pulled the trigger on a beautiful Zenith Captain Chronograph (03.2110.400/01.C498).
I purchased it from Chrono24, where I met the seller and the watch in person. Box and warranty provided. I registered online at the official Zenith Web-site, so have my 3 years warranty. I also took a slo-mo video with my iphone and counted the amazing 10 beats per second! So it all looks good and above board.
Out of interest is there such a thing as a replica movement that beats at 36,000VpH?