Watch does everything as stated.  Excellent solar power, and radio controlled syncronization, and world time zone along with your home time zone.  good features.  Only some slight disappointment with the listed size.  Casio shows/states it's smaller than the other GW5600's and it may well be little smaller, but it's still relatively large.  It stated in the Amazon seller description as 38 mm wide, but that's the inner bezel, actual width including the flange to protect the buttons,is more like 43mm.  Thickness is 12-13 mm.  Overall a fine watch, looks good, rugged & long lasting.