The Citizen Men's Eco-Drive Perpetual Calendar Chronograph Watch #BL5380-58E offers eye-catching, sporty style and advanced timekeeping functionality in one package. This timepiece's bold black dial is filled with features to keep you on track. In addition to three-hand timekeeping, the watch features a perpetual date calendar located at four o'clock, which automatically corrects the date through the year 2100, a chronograph with precise functionality to 1/20th of a second, three chronograph subdials, and an alarm function. Easy-to-read indexes offer a crisp, contrasting accent. Brushed and polished stainless steel at the bezel and bracelet round out this fine timepiece with durability and class. And since it's an Eco-Drive, this watch features Citizen's innovative, continuous light-powered functionality, eliminating the need for a battery and making it an choice. This timepiece is water resistant to 660 feet (200 meters).<br /><p><strong>Summary of Features:</strong></p> <ul> <li>Perpetual calendar</li> <li>1/20 second chronograph measures up to 60 minutes</li> <li>12/24 hour time</li> <li>Dual time</li> <li>Alarm</li> <li>Screw-back case</li> </ul>