Aquagraph
·Honestly don't know. I have the blue dial of this (WN1112) and that starts TR and a two tone one (WH1153) which starts CZ. I doubt anyone could tell you definitively that your serial number cannot start with PH.
I can understand your concern, but the chances of this being fake are extremely low. Nothing looks off about it and the part code matches the dial.
I can understand your concern, but the chances of this being fake are extremely low. Nothing looks off about it and the part code matches the dial.