5 Sports SBSA227 Made in Mechanical Automatic manual SKX Stainless Steel [Seiko Watch] Men's/Unisex Watch, Japan, (with winding), Mid-size, Date/Day

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