It's crazy. I love gunmetal. It's one of my favorite watch colors, but I have none. I sold my Nixon 51-30 (too trendy, no lume); I sold my Invicta Ocean Reef 6761 (lume too scanty for a "diver watch"); I sold my Invicta Speedway XL 4913 (the giant bracelet plates dug into my wrist); I sold my Seiko SUN007 (non-hacking kinetic didn't get enough wrist time to keep battery charged); I sold my Seiko SKA427 (like the SUN007, it needs to be worn almost every day to keep the kinetic charge on the battery); I sold my Invicta Luminary (too Las Vegas); I sold my Seiko SNAB69 (played a tad too small on the wrist).
Of all the watches mentioned, if I wanted to add a gunmetal to my collection, I'd probably get the Seiko SNAB69 because I wouldn't have to worry about its straight quartz battery and it's classier than the Nixon.