This Seiko 5 Ref. 5126-8020 is an automatic wristwatch produced in the 1970s, representing the Seiko 5 series, which was developed with a strong focus on practicality, reliability, and everyday usability. The watch features a silver dial with applied bar hour markers, resulting in a clean and well-balanced design. The stainless steel case is fitted with an angled crown positioned at 4 o’clock, a characteristic feature designed to improve wearing comfort and ease of operation. The watch is powered by the 23-jewel automatic Caliber 5126. The date can be changed quickly by pressing the crown, while the day is adjusted by pulling the crown to the first position and rotating the hands. The day display is in English only. The case measures approximately 36.7 mm in diameter. A new leather strap is currently installed. The original stainless steel bracelet with matching end links is also included and will be shipped together with the watch. The watch is running at the time of listing. As this is a vintage timepiece, long-term accuracy, stable operation, and water resistance cannot be guaranteed. The watch will be carefully packed and shipped with tracking for safe delivery.