The J12 version apparently comes in both "blue screw" and "silver screw" versions, depending on the production run, I guess. Psychospike said that the J12 has had blue screws, but then, mine has silver, so go figure , , , As an aside, I have not yet had one person ask me to take any of my AP's off my wrist, so for me, the clear caseback is not important anyway. Plus, if someone knows enough about the gens to know whether the screws are blue or silver would most likely know the difference between the gen movement and the A7750. Nonetheless, it appears that these new 44mm are a step up from the existing reps. I have both the 44mm Panda and RG and they are superb, both in terms of lume, power reserve, time-keeping and of course, looks! Even the AR appears to be good . . .