IMO, "imperfections" can be cosmetic, as well as functional.
It appears the OP's concern is cosmetic, i.e. threaded ends too short.
For comparison, I'd like to contribute a couple photos of my BLRO Jubilee. I bought the watch new from my local AD in April, 2019.
Several links were removed to size the bracelet for my scrawny wrist, but the screws are the original ones it was manufactured with. I don't own a DJ, though I'd expect the screw-ends to look the same - pretty much flush with the links.
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Jim
Explorer 214270.
Sea-Dweller 126600.
Sea-Dweller Deepsea 126660 Black.
Submariner 5512.
PAM 514 Radiomir 1940.
Railmaster XXL 2806.52.37.
Speedmaster Moonphase 304.33.44.52.01.001.
RIP JJ
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