Can you share some pics of the two?
Ok, took a few pics of the black & slate Link Bracelets. Some on the watch, some side by side etc. Apologies for quality or dust, didn't want to spend too much time and should have cleaned them a bit better, but I tried to get different light on them to show how that affects the colours. In some lights the slate matched best, in others the black did. I finally decided on the slate.
First a side by side, slate left, (Space) black right:

With the U3 in between:

Black top, slate bottom:

Slate top, black bottom:

Slate:



Black:

