Clocks don’t usually write the time, but the incredibly intricate, hand-carved clock in the video above does. Created by the 22-year-old Suzuki Kango from the Tohoku University of Art and Design in Japan, the clock writes the time, every minute of it, on a magnetic drawing board.

The old time is quickly erased, and the new one added. The unusual clock gained attention after Kango posted a short video on Twitter.

Called the Plock wood clock, it is, unbelievably, Kango’s senior-year thesis project.

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The clock contains 407 separate wood pieces and took six months to build. It has four magnetic stylus pens that write the time in the 24 hour format.