Prove that you can rugged and fashionable with this stainless steel watch with carbon fiber inlay on the dial and bracelet. The mix of materials, along with the patterned black dial, one-way rotating bezel, date indicator, luminous hands, and generous 44 mm screw-back case, along with 200M WR, is bound to make a lasting impression. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number J810.