Amazon.com Product Description
Fueled by light, the Citizen Men's Eco-Drive Exclusive Chronograph Strap Watch runs on advanced Eco-Drive technology, so it marks time without requiring a battery. Featuring sporty, stainless steel accents, this classic timepiece garners attention with a vivid blue dial that's protected by a fine mineral crystal. The spherical watch face is embellished with crisp, luminescent Roman hourly indexes at the three, six, nine, and 12 o'clock positions, which are interspersed with stick hourly markers and bordered by second markers. The eye-catching inner dial features three luminescent subdials alongside an an easy-to-read date window, which is perched at four o'clock. A durable stainless steel bezel and case house the dial and connect to a rugged blue canvas band that easily fastens with a buckle clasp. Water resistance to 660 feet (200 meters) and Japanese-quartz movement let you stay active without removing this handsome, cutting-edge watch. Charge it by sunlight, flourescent light, or regular incandescent light for a reliable, long-lasting charge. This timepiece is sold exclusively on Amazon.com and includes a Citizen Eco-Drive box for elegant presentation.
Note: If placed in an unlit area while fully charged, the Eco-Drive watch will run anywhere from 45 days to five years, depending on the model.
The Citizen Story

The company was established in 1924. The founding fathers selected the name Citizen so it would be "Close to the Hearts of People Everywhere" and soon after adopted the company’s formal name, Citizen Watch Company.
During the last seventy-five years Citizen has expanded its business throughout the world and has achieved recognition as the global brand. The past twenty-five year period has coincided with the company’s dramatic rise to its current position as the world’s largest watchmaker, a distinction Citizen has held every year since 1986.
Beyond sheer size, Citizen is also recognized as a worldwide leader in advanced technology. From the world’s slimmest LCD watch to the first voice recognition watch and the world’s first professional dive watch with an electronic depth sensor, Citizen’s record of "world’s firsts" is unmatched.
More recently, Citizen has staked out a new position as the leader in timekeeping with its Eco-Drives watches that are light powered. With models ranging from dress models to sports models to professional dive watches, Citizen Eco-Drive runs continuously in any kind of natural or artificial light for a lifetime of use. Fueled by light, it never needs a battery.