Citizen Eco-Drive x Analog ft. Chronograph Men Casual Formal Round 100m Water Resistant Watch CA7001-87E CA7001 CA-7001 Experience precision and power with this sleek stainless steel watch, powered by Eco-Drive technology that harnesses energy from any light source, eliminating battery replacements. Featuring WR100 water resistance, multi-dial functionality, and date display, this timepiece combines style and performance. Caliber Number / Movement B642 (solar Eco-Drive) Power Reserve / Accuracy Approximately 7 months when fully charged (+/-15 seconds per month) Crystal Mineral crystal Luminous Nil Case & Band Material Stainless steel case with metal band (three-fold clasp with push-button release) Water Resistance 100m / 10 bar Case Size Thickness: 11.4 mm Diameter: 42.5 mm Other Specifications Citizen Eco-Drive x Analog ft. Chronograph Date 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)