After learning that my bracelet with #11 end links wouldn't fit my 168.018 Constellation, I picked up a 166.010 Seamaster. I thought I'd seen a lot of examples of this case with #11 end links, but the fit between the bracelet and the case seems pretty rickety. Is there some further adjustment I should be doing? I truly have no idea what I'm talking about.
Couple things to fix. The tabs on the end-links should be flat, not bent downwards as we see now. You should also have the bracelet links adjacent to the end-links closed up. The biggest thing is adjusting the tabs. The end-links may also need a subtle reshaping as well.