It's powered by Citizen's vaunted Eco-Drive movement, which converts light energy into electricity with the use of a solar cell ... lume that lasts all night…I have 40 watches in my collection ...

Citizen's just-released Eco-Drive Promaster Professional Diver 300 m watch can last up to one year on a single solar top off.

While Seiko undoubtedly has the edge in styling, Citizen holds its own with its watches’ capabilities. The brand has further proven its prowess with its latest, the Citizen Eco-Drive ... black ...