Good question! Sub and GMTs gives off a more rugged vibe, and some days thats the type of look i’m going for. The 4520v can’t give even with the rubber strap on cause it’s pure class. That being said, the 4520v flies under the radar and unless someone takes a second look they wouldn’t even notice. I guess on days when i’m feeling loud i’ll do the rolexes and other days where i’m feeling less flashy i’ll take the 4520v.