It could hardly be more dubious! I offered the company a technically flawless Patek Philippe that had been checked by a watchmaker in response to its advertising. Chronext made a reasonable (but of course non-binding) purchase offer. The watch was then sent to the company. Chronext then reported back that the watch (which was in perfect condition, had been checked and was running very well) would have to be overhauled by the manufacturer at my expense. No binding purchase price was given. Apparently, even Chronext's own watchmakers, who are advertised as professional, are not able to overhaul a simple two-hand movement themselves. They did not reply to my e-mails asking them to return the watch immediately until I called them. This was probably a case of Chronext trying to pull the wool over the eyes of a supposedly stupid person. Conclusion: "Dubious" is still the mildest attribute that can be given to the company.