The issue is on a Cartel 1655 that i have installed a 116 on the date mag is just a touch to the left as the cartel dils from the new vintage versions seam to have a date wheel overlay and date windo wthat is in between rolex and ETA, so it you have for example a 1680 with a gen or clarks 127 the loupe will be a touch to the left, if you fir a 125 it will be a touch to the right, the problem with a 1655 is that the 125 is 0.6mm to big to fit the case so will have to be glued and i am not too happy with that, the loup as it is is just a touch and only if you know it, i asked my quality control and the people that have met my 11 year old daughter will know that if some thing is wrong on the dial she will spot it and this fault had to be pointed out in the end to her.
I think if you fit the 125 to a 1680 the loupe will be too far right and if you try and NDT dial on a cartel vintage you will need an MBW overlay ans the cartel dials and date wheels seem to put the date window just a touch 1/2mm?? to the right