Citizen Eco-Drive One

The Eco-Drive One is the thinnest, analog, light-powered quartz watch in the world. This new addition to the collection features a zirconia ceramic bezel, a Duratect Platinum-coated stainless steel case for lightweight durability—and a handsome black textured dial with applied indices and a matching handset. Powered by the Eco-Drive Calibre 8826, with 12 months of running time, it features an ultra-thin 39mm, one-piece case measuring 3.88mm thick, a sapphire crystal with “Clarity” coating, and a 3 bar of water resistance. 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.