Watch business - people park complex

[foofam77]

Just bought a men and boy size big roman dial dj no diamond marker at 7.8k.
No box and paper.
No pinhole.
White dial.

Can I confirm that the movement numbers are standard across for men: 3135 and boy: 2135, and that I will not be able to see the unique casing serial numbers on the watch movement itself?

Thanks