Description The Blue Shark IV builds on DELMA’s deep-diving heritage with an extraordinary 5,000-meter water resistance and the iconic Blue Shark design. Featuring a captivating teal gradient dial, bold Super-LumiNova numerals, indexes, and hands, it delivers exceptional legibility and performance in the most demanding conditions. Engineered in solid stainless steel with unidirectional bezel, the Blue Shark IV combines robust construction with refined craftsmanship. An interchangeable stainless-steel bracelet and genuine rubber strap provide versatility for every adventure, making this professional diver a powerful companion on land and at sea.