Citizen Eco-Drive technology with atomic timekeeping makes this the most accurate watch in the world. This perpetual calendar is radio-controlled in 5 time zones, boasts a 1-second chronograph that measures up to 60 minutes, and power reserve.
Citizen Eco-Drive started with a simple, yet revolutionary concept: a watch that never needs a battery. Citizen Eco-Drive technology harnesses the power of light – from any natural or artificial light source – and converts it into energy which is stored in a permanently rechargeable lithium-ion cell. It recharges continuously in any kind of light to run forever.