Up for sales is a gently used Citizen Skyhawk. This watch has it all. It runs on light (Eco Drive), the timekeeping is Atomic radio controlled accuracy, dual time zones and a lot more. A perfect piece for travelers where it takes away any headache with maintaining time in different regions. Here are some details from Amazon: light powered Eco-Drive Caliber U600 Japanese-quartz movement; charges in natural sunlight or indoor light Max power reserve: 180 days to 30 Months with Power Save; low charge warning: 3 days; charge time from stop state to max charge: Incandescent Light - 150 hrs, Outdoors, Cloudy (10,000 Lux) - 60 hrs, Outdoors, Sunny (100,000 Lux) - 20 hrs Durable, hardened non-reflective mineral crystal; case diameter: 48 mm; 2 Alarms; 1/100 second chronograph measures up to 24 hours; 99 minute countdown timer; rotating slide rule bezel Stainless steel case; black dial; perpetual-calendar; world time (43 cities) functions; Greenwich Mean Time display; atomic timekeeping with radio-controlled accuracy Water-resistant to 660 feet (200 M) Featuring Eco-Drive technology that charges indoors or out in the sun, the ultra-sporty Skyhawk A-T watch #JY0000-02E from Citizen never needs a battery. Offering global atomic timekeeping with radio-controlled accuracy, this chronograph watch shows world time in 43 cities, has two alarms, and also offers a 99 minute countdown timer. A perpetual calendar and GMT display keep you on-track, while a black dial with digital display light is easy to read. The watch also features a stainless steel case for a contemporary look, and a black rubber strap for durability and comfort. Water resistant to 200 feet, this timepiece also comes with a five-year warranty. Summary of Features: Atomic timekeeping with radio-controlled accuracy World time in 43 cities 2 alarms 1/100 second chronograph that measures up to 24 hours 99 minute countdown timer Perpetual calendar Digital display light Greenwich Mean Time display Rotating slide-rule bezel Non-reflective mineral crystal Power-reserve indicator 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.