Purchased on July 1, 2025. It has been used, so there is a feeling of use. Please understand that it is not a perfect product. The date, day, and time adjustments are fine, so I think the operation is not a problem. Spare links are also included. ◾️Specifications Caliber No.: 4R36 Driving System: Mechanical, Automatic (with manual winding) Accuracy: +45 seconds to -35 seconds per day Duration: Approximately 41 hours when fully wound Number of Jewels: 24 jewels Functions: Second-hand stop function, Calendar (date and day) function ◾️Description Mainly a renewal of the 5 Sports, which was mainly sold overseas. - A robust design born from the pursuit of functionality, backed by history. Design elements that cannot be found in diver's watches. - Mechanical watch with overwhelming cost performance. Introducing many lineups to provide "the joy of choosing". Special rotating bezel with logo printed on it. Dial Color: Black Belt Color: Silver Accessories: Box, Booklet Operation: Good