Check out this awesome clock that engraves the passing time.

The etch clock is a beautiful clock that looks like a reverse digital display. The passing time is engraved in a hollow surface. The clock is made the engineers at 42Foundary

This is what the engineers have to say about their clock.

“There are several ways to show information and in particular time. ETCH is proposing a new method exploiting a real 3D effect. With the digital world we are used to see 7 segments digits, graphical engraved or embossed fonts and in general displays and clocks everywhere. We wanted to blend in an unconventional way all these common experiences and be able to create a “wow effect” and surprise at every single minute”.