Citizen Eco-Drive One

The Eco-Drive One is the thinnest, analog, light-powered watch in the world. This new addition to the collection features a black dial with Duratect Platinum-coated steel for lightweight durability—and takes its design inspiration from luxury sports watches of the 1970s. Powered by the Eco-Drive Calibre 8826, with 12 months of running time, it features an ultra-thin 38mm, one-piece case measuring 3.88mm thick, a sapphire crystal with “Clarity” coating, a hardy 5 bar of water resistance, and a modified pentagonal shape. This collection has since come to define the marriage of advanced, light-powered movement technology and ultrathin watchmaking in the 21st century. When paired to a 0.15mm synthetic sapphire dial and crystal, with a brand-new, rechargeable 3.7V power cell from Maxell, the result was a hand-assembled wonder the likes of which the watch world had never before seen.