spedeA bit tough to tell with a render, but I think the COMBAT may be using Helvetica, whereas the rest seems to be Arial. The COMBAT seems to not have kerning, but seems to have tracking added (via full justification) to align the blocks of text.
The inconsistency is what gets me as well! /jk (Not really too bugged about this).
I'm just a developer with more than a passing experience in the TTF font and PDF specs.
spedevery underappreciated in the watch world and if they did take note, would make watch design as a whole, much better (although more expensive if you're doing a hard to create font with metal).