Citizen Eco-Drive x Analog ft. World Time Men Casual Formal Round 50m Water Resistant Watch BX1009-10X BX1009 BX-1009Experience precision and style with this solar-powered timepiece, featuring a 41mm stainless steel case, sapphire crystal, and leather band. With an impressive 8-month power reserve, perpetual calendar, and 26-time zone world time function, this watch is perfect for the modern globetrotter.Caliber Number / MovementE784 (solar Eco-Drive)Power Reserve / AccuracyApproximately 8 months when fully charged (+/-15 seconds per month)CrystalSapphire crystalLuminousLuminous on hands and indexesCase & Band MaterialStainless steel case with leather bandWater Resistance50m / 5 barCase SizeThickness: 10.0 mmDiameter: 41.0 mmOther SpecificationsCitizen Eco-Drive x Analog ft. World TimeDate displayInsufficient charge warning functionOvercharge prevention functionPerpetual calendarWorld time (26 time zones)Summer time on/offRegular timekeeping (analog display)