I’ve just posted a video review of my Oris TT1 Pro Divers Regulator 1000m, also known as “Der Meistertaucher”. I took this watch with me on a vacation, and it performed wonderfully. Fantastic water resistance and the lightweight titanium makes it very comfortable to wear. Features a 44mm diameter, and helium escape valve. Movement is a ETA2836-2 base movement modified and called the Oris 649.