Sophisticated modern styling is the hallmark of this new, classically inspired collection with Eco-Drive technology. The richness of the grey dial and leather strap provide a pleasing contrast to the stainless steel rose gold tone 35mm case. A 20-diamond bezel, spherical crystal and applied Roman numeral markers add to Ciena\'s unique elegance. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number E031.