I really like the Eco-Drive series from Citizen. No batteries needed! They are powered by artificial or natural light. The Ecozilla has to be one of my favorites. This watch is massive and it screams Man’s Man. Equipped with a large stainless case and boldly luminous hands and markers. Additional features include a date indicator, reinforced urethane band and extender, 6 mm non-reflective curved crystal, ratcheted elapsed-time bezel and screw-back case and screw-down crown. Check out the attached video to see it up close.