Forty years ago, CITIZEN has pioneered the world’s first analog quartz watch that utilises light as a major power source. Otherwise known as Eco-Drive, this technology relies on a renewable natural resource to grant access for anyone who uses it for generating its own electrical energy. Since then, Eco-Drive has emerged as one of CITIZEN’s essential technologies that later became the company’s corporate philosophy of “crafting timepieces loved by citizens all over the world.”
This year, CITIZEN has introduced their latest flagship model known as Eco-Drive One. Hailed as the world’s thinnest light-powered analog quartz watch with a 2.98mm case and 1.00mm movement, the Eco-Drive One features a combination of re-engineered design on almost every part of the movement using CITIZEN’s state-of-the-art processing techniques with an enhanced Eco-Drive technology. Despite the thinness factor, Eco-Drive One is capable of running 10 months on a single full charge using low-energy consumption.
For the construction of the 2.98mm case, CITIZEN uses flexible yet robust and thin materials to shape a distinct silhouette that helps hug the wrist comfortably. To achieve the exclusive requirements of “beautiful thinness” and “durable hardness”, cermet is used for the case of the Eco-Drive One Limited Model (AR5014-04E) and the bezel for AR5000-50E/AR5000-68A/AR5004-59H models. The cermet, which is actually a composite material made of ceramic and metal compounds, gives the watch an elegant finish and metallic shine. For the bezel on the AR5014-04E model, a binderless cemented carbide is used to help prevent erosion and oxidation.
There are only 800 pieces of the limited AR5014-04E model available worldwide.