The beauty of the vast, unexplored oceans is offset by an environment that is so harsh it deters regular divers. The reverence felt by the technical divers and their support crew who explore the caves, caverns, and wrecks in this tough environment is embodied by beautiful emerald green and blue colors. The ISO diver standard 200-meter water resistant GWFD1000MB employs an emerald blue base color. The inside of the band combines white and gray coloring in the image of the sand of the ocean floor. The ion-plated (IP) finish of the sensor cover at 3 o'clock sparkles like the sun when viewed from underwater.