Citizen Eco-Drive Men's Chronograph Stainless Steel Watch, specifically the model CA0540-56L.

Key Specifications
Model Number: CA0540-56L.
Movement: Powered by Eco-Drive technology, which harnesses light from any natural or artificial source, eliminating the need for a battery.

Case & Bracelet: Made of stainless steel.
Used watch in good condition, serviced and cleaned with a sonic cleaner. Working fully, a good reliable every day watch that looks good. There are age related marks on the bezel but the chrono is fully functioning as does the 60 click bezel.