Citizen Eco-Drive x Analog ft. Radio-Controlled aka Moon Phase Men Formal Round 100m Water Resistant Watch BY1030-09A BY1030 BY-1030Experience stargazing precision with the Citizen Eco-Drive Moon Phase series. This advanced watch features a solar-powered movement, a perpetual calendar, and an automatic moon phase display for the northern and southern hemispheres, all within a classic 42mm stainless steel case with a sapphire crystal.Caliber Number / MovementH874 (Eco-Drive aka solar powered)Power Reserve / AccuracyApproximately 6 months when fully charged (+/-15 seconds per month without reception)CrystalSapphire crystalLuminousLuminous on hands and indexesCase / Band MaterialStainless steel case with leather band (deployment clasp with push-button release)Water Resistance100m / 10 barCase SizeThickness: 10.7 mmDiameter: 42.0 mmLength: 47.6 mmLug width: 21.0 mmOther SpecificationsCitizen Eco-Drive x Analog ft. Radio-Controlled aka MoonphaseSummer time (automatic / manual switching)World time function (24 time zones)Perpetual calendar (to 28 February 2100)Moon phase display (automatic calculation)Moon phase display switching function (Northern or Southern Hemisphere)Power reserve indicatorOvercharge prevention functionInsufficient charge warning functionPower saving function (hands stop to save power when left in the dark)Automatic hand position alignment functionDay, date and 24-hour displayRegular timekeeping (analog display)Global Radio-Controlled FunctionReceiving time signal (automatic, on demand, auto recovery)Signal stations: Japan (East/West) / USA / Germany / ChinaAutomatic signal station selection function (for Japan standard signals only)Confirming reception status (RX)Indicating the result of last reception (OK/NO)
