The OnePlus Concept One Watch
While on first look it might seem like any other smartwatch, there’s one thing that makes it stand out from the crowd. When the camera app is activated, the glass magically turns transparent to reveal the sensors otherwise hidden from plain sight. The Concept One Watch employs this technology to blur the lines between a classic analog watch with kinetic movement and modern-day smartwatch functionality. The Android WearOS watch is a perfect hybrid capable of satisfying proponents of classic watches and ones who like the more modern approach of the connected ecosystem of smartwatches... More here.
An interesting idea, but I am fast coming to the conclusion that hybrid watches may not be long for this world. It will either be traditional or smart with nothing in between.