SJ Production presents the RICHARD MILLE RM 21-01 series RM8, featuring a fully automatic imported mechanical movement. With dimensions of 40x50x16mm, the watch boasts a case made of carbon fiber, which serves as a structural support to further reinforce its precision architecture. This lightweight and durable composite material is created by layering hundreds of thin sheets of carbon fiber at a 45-degree angle using automated processes, then heated to 120 degrees in a high-pressure autoclave, and finally processed with micron-level precision. This reinforced structure provides exceptional protection for the case, akin to armor, and is securely fastened with 20 spline screws. The RICHARD MILLE RM 21-01 watch resembles a true wrist-mounted spacecraft, powered by cutting-edge technology that continually breaks the constraints of traditional materials in the watchmaking industry. Featuring a design inspired by the Royal Oak's exquisite skeleton style, it is filled with technological innovation while remaining understated and consistent. The S1 is a refined recommendation for men's mechanical watches.