The Shanghai 4131 movement, developed in collaboration between Shanghai and Clean Factory, sets a new benchmark for replica watch movements. Created as an advancement over the previous 4130 model, the Shanghai 4131 addresses and rectifies several issues, such as movement stability, the ability to reset chronograph functions, rough finishing, incorrect dimensions, winding feel, and rotor noise.

This 75-hour power reserve movement is meticulously finished, plated, engraved, and assembled independently by Clean Factory. What truly sets the Shanghai 4131 apart is its high-fidelity replication of the genuine 4131 in terms of appearance and dimensions, as evidenced by side-by-side comparisons. Nevertheless, minor differences exist in the shock absorber stones, which are barely noticeable.

While the initial batch of pre-production units has been well-received by customers for their impressive quality and performance, the Shanghai 4131 movement is still undergoing market validation. Potential buyers are encouraged to give it time to prove its value, promising an exciting surprise in terms of quality. The initial version features engraved markings, but the final production pieces are expected to be even closer to the authentic model.

It’s important to emphasize that the Shanghai 4131 is in a different league compared to the earlier Shanghai 4130, showcasing significant improvements in every detail. As Clean Factory holds the exclusive contract for the Shanghai 4131 movement, it offers a unique opportunity for enthusiasts seeking a high-quality replica experience.