The only major flaw in the big bangs that you cant correct is the way the rotor attaches to the movement, on the reps its teeth on the gens its like a key system. Type in 'Identifying a Hublot Replica' into google and the last picture shows what I m on about, nice of them to show us what to aim for. You are definatly better off with the ceramic bezel if you want it as close to gen as pos, the pvd is nice but is not as reflective as it should be.