If you are really into gray and green, the silver green might be the perfect mix of both worlds. This extra long Zulu watch band is 30 cm / 11,811 inches, that will for sure fit over a wetsuit. Just like the Nato strap the Zulu strap was developed for a specific purpose, in this case for professional divers who needed extra strong and long straps to fit their divers watch on outside of the wetsuits. The solution was a rough strip of thick nylon with heavy duty steel parts.
And also, if you love the discrete look of a black watch this PVD Zulu strap is the perfect catch for you since the steel hardware has a black PVD coating. This means that they are a great accessory, not only for black watches, but also for gold or watches of colors that doesn't match steel hardware.