the blue dial is way off compared to the gen. I have compared the two side by side. the gen has bold solid white AP inscriptions and very solid minute markers. the blue dial on the gen is almost as dark as black and is matte in finish while the rep has a constant sunburst reflection to it and the color is too light. they only look similar in pictures but it's worlds apart in real life. I suggest you wait for v3 since JF factory just got a gen blue dial recently.
If you compared 2 side by side why didn't you take pics?
I've heard that this BS many times on this forum: "I compared 2 side by side" but I didn't take pics. Sorry mate but if you don't show pic it doesn't mean much.
I've seen blue 15400 just once in AP store in Miami and color looked pretty much same or very close as JF. Crystal seemed different. Gen crystal reflect more light so changing to 2AR will make rep look less gen like.
one more thing if you look at gen blue dial in bright light it will look light blue.