Thank you for your review--and your service!
I cannot find a way to contact Casio to ask if the watch has any nickel that touches the skin. I cannot tell if it has a metal buckle, which is where the nickel usually is, or has some sort of finish that wears off to nickel. Had to get rid of my timex when the finish on the buckle rubbed off and the nickel started big welts. Maybe you know these things?