It also depends on which rep you're talking about. I have gone on 50+ foot dives with a Noobmariner, SSD, and the 16800 Franken in built last year. The less gasket area the watch has, the less chances of a leak. After a nice seal of the HEV(not really necessary, but doesnt hurt) a good and well gasketted and lubed SSD can definitely go deep. If its' a chronograph, I say keep it dry. If it's a dive watch, grease it, and go deep.