Gold two-toned casing gives way to a wealth of functions: perpetual calendar through 2100, 1/20 second chronograph with measurement up to 60 minutes, 12/24 hour time, dual time, alarm, and power saver function. View through the extra hard mineral glass the date display at 4 and time that's always on time with Citizen's powerful Eco-Drive. With push button safety fold over clasp.Citizen's Eco-Drive technology harnesses power from any natural or artificial light source, converts it into energy, and stores it in the Eco-Drive energy cell. Your watch recharges continuously to run forever (power reserve up to 5 years), so you'll never need a replacement battery! Warranty: 5-year