We live in an era of cool, digital timekeeping. Our workdays are defined by electronic objects made from metal and plastic. Asphalt, glass, steel, and concrete surround us in our cities. No wonder we yearn for something different — for warm colors, materials from living sources, wood grain, textured leather and textiles; for the look of lifelike materials such as bronze, which changes over time and acquires a unique patina. Bronze also recalls the pre-industrial era and ships, which — despite the simplicity of their navigational tools — helped us discover and explore entire continents. In this feature from WatchTime Special Design Issue 2017, we present several watches created using natural materials.