Omega SJ Production Model: Tape Version .Special Edition Seamaster Gray Omega OMEGA KH1 from OR Factory offers you a better choice. This is the only original mold counterpart 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 website specifications, taking three and a half years of research and development to create a true integrated movement.1. The movement has a power reserve consistent with the original, lasting 55 hours. The 42mm case is made of stainless steel, with the dial and hollow hands coated in Super-LumiNova for luminescence. The bezel is crafted from titanium.2. The automatic hammer of the movement is the only counterpart with seven original ceramic beads, which are costly yet durable. The winding feel is the same as the original, and the beauty of the movement's operation is clearly visible. The sapphire glass case back features a wave-edge design, allowing you to appreciate the movement.3. Most components of the movement are interchangeable with the original, featuring the same fish scale pattern, ensuring stable timekeeping. This truly achieves a near-perfect match. S1 exquisitely recommends this mechanical wristwatch for men.