Citizen Mod. By1010-81X Official Box Product Description: The Citizen BY1010-81X is a sophisticated men's timepiece that seamlessly blends advanced technology with elegant design. Powered by Citizen's renowned Eco-Drive technology, this watch harnesses light to function, eliminating the need for battery replacements. Key Features: Movement: Eco-Drive (Solar-Powered)Caliber: H874Case Material: Super Titanium? with Duratect TICCase Diameter: 43mmDial Color: GreenCrystal: SapphireBracelet Material: Super Titanium? with Duratect TICWater Resistance: 100 meters (10 ATM) Additional Features: Radio-Controlled Timekeeping: Ensures precise time by synchronizing with atomic clocks.Moon Phase Indicator: Displays the current phase of the moon.Perpetual Calendar: Automatically adjusts for varying month lengths and leap years.World Time Function: Allows tracking of time across multiple time zones.Luminous Hands and Markers: Enhances readability in low-light conditions.Date Display: Positioned at the 4 o'clock marker. Specifications: Brand: CitizenModel: BY1010-81XSeries: Tsuki-YomiCase Material: Super Titanium? with Duratect TICCase Diameter: 43mmDial Color: GreenCrystal: Scratch-Resistant SapphireBracelet Material: Super Titanium? with Duratect TICWater Resistance: 100 meters (10 ATM)Movement: Eco-Drive Caliber H874Functions: Radio-Controlled Timekeeping, Moon Phase Indicator, Perpetual Calendar, World Time, Date Display This Citizen watch offers a harmonious blend of advanced technology and elegant design, making it an excellent choice for both collectors and those seeking a reliable, stylish accessory. Note: Product specifications are based on available information and may vary slightly. SpecificationValuePackagingOfficial Box