Omega SJ Production Model - Rubber Strap Version .Special Edition Seamaster Gray Omega OMEGA KH1 from Factory OR offers you a better choice. This is the only original mold replica of the brand new Seamaster series diving watch, featuring a mesh strap, rubber strap, and folding clasp, all designed based on the latest official store designs. It took three and a half years of research and development to create a genuine integrated movement.1. The movement has a power reserve consistent with the original, lasting 55 hours, with a 42mm stainless steel case. The dial and hollow hands are coated with Super-LumiNova luminous paint. The bezel is made of titanium material.2. The movement features an automatic hammer with seven original ceramic beads, which are costly yet durable, providing a winding feel indistinguishable from the original. The movement's aesthetic operation is clearly visible through the sapphire glass case back designed with a wave edge.3. Most movement components are interchangeable with the original, and the movement features a fish scale pattern consistent with the original, ensuring stable timekeeping. This truly achieves an unparalleled resemblance. S1 exquisitely recommends this men's mechanical wristwatch.