As requested side view. Note bigger bubble and deeper knurled area....this watch is THICK...
Also note the different bezel.
This has a double 45 rather than just the 45 in to out configuration...making it different from the Athlete in yet another way.
Also...the Athlete uses a 10.5 h with a spacer ring...and a dial larger than the movement.
The NA even thought it is based on a 9 3/4 ligne, the autowind flange actually makes it bigger than a 10.5 ligne. The dial for a bubbleback is bigger so it fits the rehaute though there might be dimensional differences in the case as well.