Well quality control won't be the same since they are running a illegal operation. They try to pump out the most per day and with customers being picky of detail about accuracy of the looks so they spend no time working on fixing the movement and as long as the watch runs at a rate of +/- reasonable standard ( max 10 sec a day). Those movement come from an other factory and it would add 4h of work per watch just to get them to maybe 0 sec a day on all positions and that's a big maybe. Just buy a real chrono spec eta 2824-2 or sw200-1 and swap it if you are that picky about accuracy. You are literally comparing blackmarket to legal counterfeit. If you go to the pharmacy and buy generic version of pills you won't get the same thing on the blackmarket but the blackmarket will be stamped like the original contrary to the generic but may contain different stuff in it that you don't know.
