Citizen Eco-Drive x Analog ft. Chronograph (Limited Edition) Men Casual Formal Round 50m Water Resistant Watch AT2544-64E AT2544 AT-2544Explore the pinnacle of watchmaking with our innovative Eco-Drive technology, harnessing light to power a precise and durable timepiece. Designed for the modern gentleman, this sleek design boasts a 40mm case, date display, and stylish stainless steel strap, perfect for business or leisure.Caliber Number / MovementH500 (solar Eco-Drive)Power Reserve / AccuracyApproximately 5 months when fully charged (+/-15 seconds per month)CrystalMineral crystalLuminousLuminous on hands and indexesCase & Band MaterialStainless steel case with metal band (slide clasp)Water Resistance50m / 5 barCase SizeThickness: 9.5 mmDiameter: 38.0 mmOther SpecificationsCitizen Eco-Drive x Analog ft. Chronograph (Limited Edition)Chronograph up to 60 minutes in 1-second incrementInsufficient charge warning functionOvercharge prevention functionDate and 24-hour displayEquipped with small second handRegular timekeeping (analog display)