Mine is missing from my bezel, just like CalDiver's whose picture I'm using above for illustrative purposes. His is set at just above the 1:00 location, and he has the same empty hole on his bezel as I have on mine where the small luminous tube in metal originally was. I don't want to send the watch in, I just want to get the part and I'll put it in myself. Anyone know how to get this part replaced?
Actually, it's a tritium gas pip. It is a tiny tube placed upright.The missing piece in question is not really a light tube, but a small luminous pip in the bezel. It is (I believe) just super-luminova like the rest of the bezel.
I can understand that "tubes" are factory only servicing--this SL pip should be an easy fix IMO.