Citizen Eco-Drive x Analog ft. Chronograph Men Casual Formal Hexagon 100m Water Resistant Watch CA4590-81X CA4590 CA-4590 Experience precision timekeeping with this sleek stainless steel watch, powered by Citizen's innovative Eco-Drive technology. Enjoy up to 9 months of battery life, 100m water resistance, and advanced features like chronograph, date display, and insufficient charge warning. Perfect for those seeking a stylish and reliable timepiece. Caliber Number / Movement B620 (solar Eco-Drive) Power Reserve / Accuracy Approximately 9 months when fully charged (+/-15 seconds per month) Crystal Mineral crystal Luminous Luminous on hands Case & Band Material Stainless steel case with metal band (three-fold clasp with push-button release) Water Resistance 100m / 10 bar Case Size Thickness: 12.1 mm Diameter: 41.0 mm Other Specifications Citizen Eco-Drive x Analog ft. Chronograph Date and 24-hour display Insufficient charge warning function Overcharge prevention function Chronograph up to 60 minutes in 1/5-second increment Equipped with small second hand Regular timekeeping (analog display)