Hi, I have a May 1970 blue 6139-6000 that I recently bought and am having restored. This is a notched case and 'Proof' watch that I would like to get as close to original as I can. I AM IN NEED OF A DARK BLUE OR BLACK INNER ROTATING BEZEL. The current original item is pretty well faded to grey as usual I understand. PLEASE, if someone has one they would be prepared to part with, please let me know. Many thanks Andy.