Citizen’s men’s Satellite Wave GPS has a ton of advanced features: a timekeeping system with worldwide reception area, the world’s fastest timekeeping signal reception speed from GPS navigation satellites, world time in 27 cities, perpetual calendar, Daylight Savings Time indicator, power reserve indicator, light level indicator and day/date. The watch is made of black stainless-steel with blue accents and is water resistant to 100 meters. The Eco-Drive technology means it never needs a battery.