These exquisite solar watches use green energy from the sun to keep the timepiece running
Https://www.kickstarter.com/projects/matteworks/matte-works-the-urban-solar-watch-solution-01 In a world dominated by smartwatches with disposable lithium-ion batteries and planned obsolescence life cycles, the Matte Works solar watches are refreshing in more ways than one. Not only are they pretty remarkable wristwatches with an evergreen aesthetic, they also come with solar panels hiding discreetly under the watch dial. These panels pull energy
Source: yankodesign.com