A bit of a story...
I was out to eat recently and was at a restaurant where there was a blind man playing guitar.
I have known this man for years as he was a friend of my parents many years ago.
He is completely blind.
I was sitting there eating when I noticed he was wearing an analog wristwatch.
I couldn't figure it out, and was completely baffled.
About 30 minutes later, he lifted his wrist, and opened the crystal which was hinged, and felt the watch hands and...