5 Sports SBSA025 Mechanical Automatic manual with Date and Day Calendar [Seiko Watch] Men's Watch, Japanese-made (with winding),

• 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).