Citizen Men's BL8044-59E Eco-Drive Calibre 8700 Two-Tone Diamond Watch Light powered Eco-Drive Caliber E87* Japanese-quartz movement; charges in natural sunlight or indoor light; citizen Eco-Drive diamond watches feature conflict-free and single cut diamonds Max power reserve: 180 days to 1.5 Years with Power Save; low charge warning: 3 days; charge time from stop state to max charge Durable, hardened non-reflective mineral crystal; 36 Genuine diamonds-accented bezel; case diameter: 40mm; Retrograde perpetual calendar function; alarm function; dual-time function with 24-hour sub dial Two-tone stainless steel case and bracelet; black dial; month-day-and-date function: Day indicator between 2 and three o'clock, date function at 4 o'clock Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving