If you could only add one of these ...

[noshame]

Hello members, your advice is appreciated for my next purchase. Looking at my current Rolex pieces, which are ALL keepers, which of these 2 do you think would best round out the collection?

Datejust 36, Blue dial, Fluted on Oyster with PCL, OR the

Speedy Pro Hesalite 1861, that I'll wear mostly on an aftermarket leather strap

I understand they are completely different. I have always wanted both watches, each for various reasons, so it's really a no lose situation for me. In the end, one day, I'll probably wind up with both, but that's no guarantee, so if you could only add one more, which would it be?