The Seiko SS-6011 belongs to the professional-grade mechanical timer series used in sports, laboratories, and engineering applications during the 1970s–1980s. This model is powered by a Seiko mechanical hand-wound movement renowned for its smooth sweep motion and precision time measurement, making it one of Seiko’s most reliable manual stopwatches of the era. Details: Origin: Japan Year: 1970s-1980s Brand: Seiko Model: Mechanical Stopwatch Reference Number: SS-6011 Type: Hand-wound mechanical stopwatch Movement: Manual Winding Case Material: Chrome-plated steel. Case Diameter: Approx. 50 mm Strap Material: Nylon Serial Number: 408249 Service History: Unknown. Conditions: Good vintage condition visually. Operation has not been confirmed. There are some minor scratches and stains due to long-term storage. Please inspect all images carefully. The Seiko SS-6011 is a mechanical stopwatch from Seiko’s professional ACRP series, renowned for durability and calibration precision. A valuable piece for collectors of Seiko chronographs, Olympic timing instruments, or vintage precision devices. Method of Shipment FedEx or Japan Post NOTICE The lot will be carefully packaged and shipped by FedEx or Japan Post. Delivery usually takes 1–2 weeks. Heavy items may be shipped by sea, which may take 1 to 2 months to arrive. The shipping method may vary depending on the item price and size. Sometimes Customs or the delivery company in your country may contact you by phone or email for clearance. Please make sure you are available to respond. If not, the parcel may be returned to me, and reshipping will cost more than twice the original shipping fee. I appreciate your cooperation.