The Squale 1521 Green Ray Rubber, reference 1521PROFGR.HT, is a professional dive watch inspired by the iconic skin-diver designs of the 1960s and 1970s. It features a 42mm polished stainless steel case with a thickness of 12.5mm and a lug-to-lug length of 48mm. The smoky green dial is complemented by Super-LumiNova C3 luminescent indices and hands for enhanced readability. Powered by the automatic Sellita SW200-1 movement, it offers a 38-hour power reserve. The watch is equipped with a unidirectional aluminum bezel, a flat anti-reflective sapphire crystal, and is water-resistant up to 500 meters. It comes fitted with a black rubber strap with a 20mm lug width and a 16mm buckle.