This is a free personal project:
Concept of a wrist watch without buttons, loose parts, ciphers
or any other unnecessary things.
The inner circle shows hours and the outer circle shows minutes. In order to fit on different sizes of wrists, the metal back (just one part) should get thinner towards the ends, so that it is possible to slightly bend it. There's also a video
Follow "ZeroWatches" on Twitter to witness the concept becoming reality!