Seiko Chronograph 6139-8020 – 1980 – 40 mm – Classic Automatic Chronograph This Seiko 6139-8020 chronograph from 1980 features the iconic design of Seiko’s renowned 6139 series. A true vintage classic, suitable both for collectors and everyday wear. Equipped with Seiko’s historic automatic chronograph movement. Technical Details Brand: Seiko Model: Chronograph 6139-8020 Movement: Original Seiko 6139 automatic chronograph Year of Production: 1980 Case Diameter: 40 mm (excluding crown) Case Material: Stainless steel Bracelet Length: 20 cm Crystal: Mineral Functions: 30-minute chronograph Day & date display The watch is in good vintage condition and fully operational. Dial and hands are aftermarket. Minor signs of wear consistent with age on the case and bracelet; no deep scratches or damage. Chronograph functions work properly. No waterproof test has been performed. There is no waterproof guarantee. Shipping and Packaging: The watch will be shipped quickly and securely via FedEx or UPS. Photos and videos of the product will be taken prior to packaging to ensure transparency and peace of mind. Customs duties, import taxes, and other charges are the responsibility of the buyer.