Japanese collective Bril has created a clock without ticking hands or numbers – instead, it marks the passage of time through browning of cedar leaves. Inspired by cedar boughs used in sake production, the Coniferous Clock consists of cedar branches tied together and clipped into a sphere. As the months go by the branches slowly turn brown to signal the passing of the year.

Bril clock, numberless clock, Coniferous Clock, green clock, green design, cedar design, japanese design, rice wine, vernacular design, japanese vernacular

The design was inspired by sugidama, also known as asakebayashi-fresh cedar branches bundled into a sphere and hung up when sake was pressed after a rice harvest. The browning of the green cedar is a sign that the rice wine is ready. After a year, the brown leaves can be removed and replaced with fresh, green leaves.

Related: Clockpops Are Colorful Retro Clocks Made from Recycled Bottlecaps

The clock marks the passage of time as if you were in a forest. Sharp leaves create a fine-pixel picture that gives texture to the clock and augment the gradation from green to brown. The clock frame is manufactured by local craftsmen. The leaves are then hooked onto it over small nails inside.

+ Bril

Via Dezeen, Fast Co.Design