Casio G-5600E Tough Solar - World Time, Alarm, Stop Watch, Timer, Oct. 2011
Above are the very clean Case Edges of the G-5600E
and below is a close-up of the case edges of the DW-5600E. Casio must be using a different mold or a different material. On the DW-5600E the case edges seem like "molten" or "burnt". Of course this can only be seen with a strong loupe. As it usually happens, I found a lot of these differences between the DW-5600E and the G-5600E when taking pictures and comparing them.