I don't know what the difference in fractions of a mm is, but I strongly suspect it is greater than 0.1mm. Honestly though, I don't think the actual measurement matters because regardless of the difference on paper, the visual difference side by side with a gen is significant and immediately noticeable. It is immediately noticeable on the wrist from a distance, too. Trust me. I own the CN sub from both TTK and TWG and have put them next to a gen. Further, pictures (unless the rep and the gen are in the same shot) can be very deceiving because of variances in shooting angles, crop factors, lighting, shadows, etc. This is not a cop out. This is a fact. I've been deceived by photos of rehaut more than once.
This is not a knock on the watch or of your review, it is simply an observation of what I've personally seen firsthand.
FYI