5 Sports SBSA013 Mechanical Automatic Manual Date and Day Green SKX Stainless [Seiko Watch] Men's Watch, Japanese-made (with Winding), Calendar, Dial,

• Includes original packaging box and global warranty (3 years). Mechanical automatic winding (with manual winding) Daily difference +45 seconds to -35 seconds Power reserve: Approximately 41 hours when fully wound. Includes a calendar function (date and day of the week).