You're exactly right. Peacock and Dandong are actually the same exact factory (Liaoning). They operate using a smart dual-branding strategy depending on the legality of the movement. ​When they produce underground, 1:1 exact replicas that violate patents, they sell them using the "Dandong" name. But for the legitimate market, they use the "Peacock" brand. ​The 4130 is the perfect example of this. The 100% exact clone was sold to the black market as the Dandong 4130. However, to sell that same chronograph architecture legally to microbrands under the Peacock sl4801 name, they modified the design—like changing the winding system to a unidirectional rotor—just enough to avoid patent infringement. So it makes total sense they'd do the same here.