Is the escapement running at the same rate? Absolutely. Modern fake Rolexes can only be told apart from a real one by an expert examining it with a loupe. And

Is the escapement running at the same rate? Absolutely. Modern fake Rolexes can only be told apart from a real one by an expert examining it with a loupe. And 8 tick pr second isn't that hard to replicate. Several ETA and Sellita calibers do it as well.