SEIKO's legendary watch line, the SEIKO 5 series, made its debut in 1963 and has remained a cornerstone of the SEIKO watch portfolio ever since. In 2019, the SEIKO 5 series underwent a contemporary transformation, sporting a fresh modern aesthetic and a new SEIKO 5 logo. However, this enduring collection retains the distinctive characteristics that defined its inaugural range, staying true to its heritage while embracing innovation.The Seiko 5 SRPD55K Stainless Steel Watch, a reliable timepiece with automatic movement (Caliber No. 4R36) driven by the wearer's motion. With a 41-hour power reserve, 42.5mm case size, and 13.4mm thickness, it blends durability and comfort. Weighing 167g, it's substantial yet manageable. Featuring a stainless-steel case and bracelet, hardlex glass, pull-out crown, and 100 meters water resistance, it's ideal for everyday wear and water-related activities.- Caliber No. 4R36- Automatic Movement – Powered by the movement of the wearer - 41 Hours Power Reserve - 42.5mm Case Size - 13.4mm Case Thickness - 167g Weight - Stainless Steel Case and Bracelet - Hardlex Glass - Lumibrite Hands & Hour Markers- Pull Out Crown - 100 Meters Water Resistant