Product Features: Case and Crown: The Oris 743-7609-8454RS dons a 47-millimeter wide stainless steel case. It is 17 millimeters in thickness, and a lug measuring 24 millimeters wide. Its case back is also made of stainless steel, and fastened securely with screws. Aside from a screw-in crown, it has a helium valve to adjust pressure … Continue reading Oris Divers Small Second Automatic Black Dial Stainless Steel Mens Replica Watch 743-7609-8454RS Review