Citizen’s just-released Eco-Drive Promaster Professional Diver 300 m watch can last up to one year on a single solar top off. Equipped with a helium escape valve and water resistance up to 300 meters, ...
Not many watches can run an entire year on a single full charge, especially ones designed for use in the darkest depths of the ocean. But Japanese watchmakers Citizen have dove deep into the abyss and ...