The Aquinus Hydrautica ASSQR7RBB001 is a unique variation of the previous model featuring a black satin dial. It has shiny silver color hands and indexes with white luminous. The case is round and polished, made of stainless steel with matte black and red aluminum inlay with luminous. It is paired with a black rubber tropic strap and utilizes the Ronda 763 Swiss-made mechanism.