I am not digging the new case. Looks to me like Rolex forgot a machining step. I love the old blue.The blue always separated itself from its much more common black steel model. It was also more nautical and fit the Submariners theme. The new blue looks less demetional and flatter.
IMO the new Sub looks older than the current model its replacing.
My Serti Sub wasnt going anywhere anyway. After 12years of ownership and I still love the look over any other Rolex.