My advice is not to give to anyone who dont have expirience with this mod trust me..i expirienced this so i can be your example,first,i bought only gen DW and gave to local professional watchmaker to do this mod and he really struggled to do it and unfortunately he failed,date was centered like a low quality 20 dolars watch tottaly misaligned and didnt flipped well dates.. after that i sent it to
interaktiv and he removed and cleaned all glue from disc and installed it perfectly... it is important which glue to use and everything,it is not easy for someone who dont have expirience with this mod and interaktiv did it 100 times
perfectly aligned and perfectly flips dates