Hi,
if Your purpose is just to wear it on your own wrist - especially if You have a large wrist or not enough rare to find links of the original bracelet, the answer is below + a skilled watchmaker to choose the proper parts:
https://vintagewatchinc.com/how-to-extend-vintage-watch-bracelet/
I have a quite large wrist, thus my skilled watchmaker did this for me, for 2-3 of my rare watches that I wear on daily basis...
Anyway, this is not a proper solution, if you want to sell it...the collectors usually will want them ALL original...but the above solution is fully reversible to the original state, and usually without any damage to the original bracelet
Hope this may help...