For a more sporty take on a Drive watch from Citizen, this model has a blue, perforated polyurethane strap paired with a black, 45mm stainless-steel case and black dial with subtle blue accents. It is powered by light with Eco-Drive technology and will never need a new battery. Product details: Movement: Eco-Drive Band: Polyurethane Case Size (mm): 45 Crystal: Mineral Crystal Water resistance: 10 bar Addtional functions:3 Hand; Date Warranty: 5 years Limited Manufacturer Warranty