...to match that specific strap intentionally or is it just serendipity? Because they look great together! Goes to demonstrate what I've said a couple of times recently about choosing a strap that reflects an element of the dial. Or, in this case, the hands.

Looks a bit like old radium and the original would have been tritium (RC Tritec stopped supplying radium lume in 1958), but it works well in the context of this watch and strap combo (in my opinion).