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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.

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.