I am trying to find a acrylic crystal for a Favre-Leuba Deep Blue Diver from 1965/65 like attached. This has a flange at the bottom that actually acts as the channel to hold the bezel onto the watch case. The top main body is 30.3 mm and the bottom, flange is 29.5 mm. If you have one that you are willing to sell - OR - have replaced one with something similar that works, please send me a message. I appreciate your help. Thanks - Jeff