Operation confirmed. 【Product Description】 This is a Seiko "Sportsmatic Calendar 820" automatic wristwatch, a popular vintage model. With its simple and classic design, it's recommended for collections or everyday use. It features a date display for practicality and allows you to enjoy a retro atmosphere. The strap is broken. Please check the image description. Returns are not accepted. Please refrain from purchasing if you are sensitive to used items. Feel free to ask any questions in the comments.