The easiest tell for this particular watch is the blue and black bezel. On the real one, there is a gradient where the blue and black meets (3 and 9 o clock). On the fake, there is no gradient and you can clearly see the line. The reason is because on the real one, the bezel is 1 piece of caramic while on the fake its 2 pieces bonded together.
Unfortunately, the watch is no longer listed so you cannot see the picture.