Designer Matej Korytar has come up with the 4D Watch concept that allow wearer to view the time in any position regardless of the watch’s placement. It has a translucent crystal-like display that will display time based on the gravity pressure or to the perspective of the wearer.
It looks like a clever idea, but the implementation is still questionable. It’s designed to control the watch via the two ball buttons at the side, but no idea how it will function. It’s a concept at the moment, but 4D trend is definitely rising up.