Took some shots today to send to Doxa to see if I can get a 1000T bracelet to fit.
Thought I'd share with you all as well.
My watch started life as a '67 Sub 300T Professional (or so research shows). It now sports an ETA-2824 mmt., Rolex Trip-lock Tube & Crown, a redone dial with re-lumed hands, sapphire crystal, and a Rolex "dot" on the bezel.
It has been extremely accurate and works great for daily use. I'm in the process of trying to locate either a 600T ricebead bracelet or see if the 1000T will work with it.