Citizen Men&#39;s Quartz Carbon-Fiber and Stainless Steel Diving Watch, Color Light powered Eco-Drive Caliber B74* Japanese-quartz movement; charges in natural sunlight or indoor light Max power reserve: 60 days; low charge warning: 2 day; Quick start ability; charge time from stop state to max charge Durable, hardened non-reflective mineral crystal; case diameter: 45 mm; depth display up to 125 feet; maximum depth memory; unidirectional carbon-fiber rotating time-elapsed bezel Stainless-steel case; black dial; 50-minute chronograph function; 12-24 hour time; date function at three o'clock; screw-back case and screw-down crown; power reserve indicator; ISO Certified for diving Water resistant to 660 feet (200 M): suitable for recreational scuba diving