Luxury Diver's Men's Watch Abalone Dial NH35A Movement Sapphire GlassWith an automatic mechanical movement driven by the Japan NH35A movement, this watch combines precision with reliability. The 316L stainless steel case undergoes meticulous wire drawing and polishing processes, showcasing a sleek and durable design. The screw in bottom cover, also made of 316L stainless steel, ensures a secure and aseptic seal. Measuring 43. 5mm in diameter and 15mm in thickness, including the mirror and bottom cover, this round case