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"The researchers have developed prototype watches and jewelry" What kind of a research team is this, fashion? :)

Also, the black parts there really didn't look that dark.

They are also all watch designs that I get served instagram ads for, coincidentally

I recognized the right watch immediately to be this one [0]. But i guess they just replaced parts of the watchfaces with their material?

The one on the left appears to be this one [0].

Those watches have crystals on them.