Great watch.  A little on the big/heavy side, need the G-Shock though.  I have worn Timex IronMan for the past 20 years or so.  I need exact time, and the atomic works great.  Solar is great too, effortless, accurate time.  The GMT zone is nice, need it at work.  I don't use the auto-update, (3 times a night) I have gone for five days without an update and it is still on time to the second.  So I manually update it every few days.  Buttons are a little difficult to operate, but once setup, hardly ever touch.  There's a time snapshot log which helps me keep track of completion times.  Couldn't find a better watch for work.