No, it’s not a fan or a hatchet, but a clock. The Spire clock from Wireframe was inspired by the movement of a Japanese folding fan. The hour and the minute hands of this clock constrain the spiral form at two ends. The spiral form of the clock unfolds and folds in the rhythm of a Japanese fan.

In order to better understand how it works, you have to watch it in action:

[via NOTCOT]