The Squale 1521 Militaire 1521MIL.HT is a professional dive watch featuring a 42 mm polished 316L stainless steel case with a thickness of 12.5 mm. It is powered by the automatic Sellita SW200-1 movement, offering a 38-hour power reserve. The black dial includes printed indices and hands coated with SuperLuminova C3 for enhanced readability. A flat sapphire crystal with anti-reflective coating protects the dial. The watch is equipped with a unidirectional aluminum bezel and a screw-in crown positioned at 4 o'clock. It has a water resistance of 500 meters (50 ATM) and comes with a black rubber strap with a 20 mm lug width. Reference number: 1521MIL.HT.