Casio G-5600E Tough Solar - World Time, Alarm, Stop Watch, Timer, Oct. 2011

On the left you see the DW-5600E with a difficult access to the Adjust Button
The Adjust button is e.g. used to set the time and it is also used to reset the chronograph. However the Adjust button on the DW-5600E is recessed and very hard to press down. I only managed to do that with the finger nail of the index of the right hand. This is certainly not very convenient while walking and even dangerous when jogging and timing laps. The newer G-5600E's Adjust button has a much easier access as you can see from the picture above.