Citizen watches are known around the world for the cutting-edge technology that goes into the inner workings of the watches. Citizen's list of 'first in the world applications' is therefore long and includes the first ultra-slim LCD watch, the first dive watch with electronic depth gauge and the first watch that via satellites always runs exactly on time. Citizen is also the first when it comes to ecologically responsible watches. Citizen's Ecodrive men's and women's watches are charged by light energy and continue to run for life.