Time for an eco-friendly watch? Time for an eco-friendly watch? Some of the more eco-friendly watch materials being embraced by sustainably-minded watchmakers include recycled steel, bioceramic and cork The Swatch Big Bold Bioceramic collection Watchmakers have long been fascinated by materials and the design and technical possibilities they hold. Now, more sustainable options are also tempting some brands, which have been experimenting with everything from ceramic to bark, creating a new breed of more eco-friendly watch. Here are three tempting timepieces from the new guard working to improve sustainability in the industry. Rado Rado has always been ahead of the curve when it comes to experimenting with materials, with its light and colourful ceramic collections both technically accomplished and appealingly design-led. Now, its Captain Cook watch collection has for the first time been crafted from high-tech ceramic, the hypoallergenic and scratch-resistant material Rado has long championed. The new Captain Cook High-Tech Ceramic is available in four versions, including in gleaming all-black.