I've heard that before about the magnification data window, I've also heard people describe it as unbalancing the watch's symmetry. FYI, the Sea Dweller has a date function without the bubble.I think the Submariner (or the Sea Dweller) would be my grail watch, but I'd have to go for a non-date version as I dislike the magnifier.
I just Googled the Helson Shark Diver..... Damn! That is a good looking watch.Aha, that's good to know about the Sea Dweller. TBH I doubt I'll ever be in a position to own one, but maybe one day.
I like that the Shark Diver has the date but doesn't lose the 3 o'clock marker, although I probably would have put it at 3:30 instead. I have a Vostok Amphibia too but the poor thing doesn't get much wrist time, I must try it on a decent strap one day instead of the cheap silicone dust magnet.