Tells (when in hands of an AD) are obvious:
- no hour-hand-only settings
- date wheel on a gen has mirror-finish, not matte like on rep
- all the vertical surfaces are not flat - they are concave due to wrong method of sanding
- seahorse on the back is not detailed enough
- SEAMASTER text on the back has wrong font - not serif one
- in case of white PloProf - the seconds and hours hands should be mirror-polished steel - NOT white
- weight:
GEN on rubber: 260g
ultimate V2 Swiss ETA 2834-2 - 246g
asian eta 2824 - 236g
low end asian 2813 - 215g
Weight, that's where she got you
p.s. sourcing original caseback might be the right thing..