Well now .... get the Ironman into the Guinness Book of World Records (it was run over with by 24.97 ton truck), throw it off a few buildings, drop it from a helicopter at 30 meters, get it approved by NASA for space flight (with pics of it being worn on the ISS), and you might just equal the G-Shock 5600. 

I've owned both. They're both good. But like the original Star Trek series that only ran for 3 seasons, the G developed a cult following and for very good reasons.

Now if the Timex was priced much lower in comparison, I'd suggest everyone buy one.