Citizen Eco Drive CA4580 50E Chronograph Data WatchWaterResistance 50 Metres The backdrop of the dial The backdrop of the dial is white with a delicate stripped pattern that enhances the edge of the case to draws all eyes into its core • Case bezel material: Resin Carbon • Multicolour carbon bezel • Resin Band (Polarised Fluorine) • Spherical Glass • Screw Lock Crown • Carbon Core Guard structure • Magnetic Resistant • Shock Resistant • Sapphire Glass with non reflective coating • ISO 200 meters Water Resistance • LED light (Super illuminator) • Tough Solar (Solar powered) • Diving mode • Mobile link (Wireless linking using Bluetooth®) • The auto hand home position correction • Dual time • 1 second stopwatch • Countdown timer • Daily alarm • Power Saving • Hand shift feature • Full auto calendar (to year 2099) • Date display • Day indicator • Regular timekeeping • Case size (L× W× H): 56 and water resistance up to 50 meters date display