I attempted to get a replacement band at 3 places but it seemed so integral to the whole watch that I figured nobody could just replace the band. And that turned out to be the case.
So, I just went ahead and bought a new one. And then luck turned in my favor—I was able to purchase exactly the same model. So I will not have to go thru the anguish of learning the controls for a new watch (I hate getting a new cell phone for the exact reason).
I provide an illustration below. Left to right: Old watch. New watch. Life is good.
(photo by Gary)