CITIZEN Eco-Drive E101-K004896. Day-date display, 20bar, unidirectional rotating bezel, solar-powered quartz. Heavy scratches on the glass. Currently running normally. It looks like titanium, but it's black-coated stainless steel and has a moderate weight. There are some paint chips. History of secondary battery replacement is unknown. Case size: Approximately 3.8cm Wrist size: Approximately 17.5cm, with spare links.