Rolex SS and TT sports model links

[Caddie]

Need some advise from here

Found something interesting. I have a SS sub, hulk, TT sunburst sub. SS sub and hulk have a extra half link but not TT sub. Meaning SS have total of 12 links + 2 small links but TT have 12 links + 1 small link. Isit counted as full links for TT ?

Regards

[et628]

My understanding is that 13 links are considered as full.