I really like the look and overall design of the Navigator Perpetual. It provides all of the information associated with a perpetual without compromising the classic navigator design. For me, though, I find the watch too casual for daily work wear, so it's sits far more than it's worn. I really do think it's a great design, though, and I prefer it's dial to the dressier Senator (40mm) models. I should also note it is also very comfortable on the wrist for a big watch (at least by my standards).
In terms of the IWC, I prefer the simpler 5001 version, finding the dial of the perpetual too cluttered for my taste. I am also not sure I would like how inflexiblle the movement setting is relative to the GO.
