Update:  Casio fixed this watch 4 years ago for $10.99.  Now it works great.  Every six months or so it will die.  And then I just put it in the window for a day and it works flawlessly.

WHEN LOOKING AT THIS WATCH, I READ CRITICAL REVIEWS OF THIS WATCH DUE TO THE BATTERY DYING.  Watch was great when it worked, but sure enough now the watch will not hold a charge.  I left it under light all day, etc., etc.. And no matter what I do the watch will not hold a charge.  Do yourself a favor and buy the original without the solar and atomic for less money. I think that it is the dw5600.  The standard 5600 that i have works great in every respect.  The solar on this watch DOES NOT WORK FOR LONG because the battery does not hold a charge.  And in my opinion the atomic is a gimick, because digital watches are extremely accurate- all of my digital watches remain within a minute of each other at all times.  They are rarely off more than 30 seconds of for years.