The RAF (likely ARF re-release) does not show an SA3135 in PT's pics. It's an SH3135, which BTW only ARF uses. The SH will take a gen DW, but not nearly as easily or without issues as a VR/VS. The VR/VS rep DWs are good enough that it would be a better option to just swap the movement IMO.
From my post on page 1 of this thread:
The movement is not an SA but SH and since ARF is the only factory using these it's a pretty clear fingerprint. Plus the clasp coronet is off center right, a known ARF issue.
SA3135 has the regulator arms reversed.