Seiko 5 Sports “Speed-Timer” Chronograph – Automatic Reference 6139-8002 – Original Case & Movement – Stainless Steel – 1970s Offered for auction is a classic Seiko 5 Sports Speed-Timer automatic chronograph, reference 6139-8002, powered by the legendary Seiko Calibre 6139 automatic chronograph movement. The watch represents an important era in watchmaking history, as the Seiko 6139 family belongs to the first generation of automatic chronograph movements ever produced, introduced by Seiko in 1969. This model features the distinctive 1970s cushion-style case, bold dial design, and integrated sports aesthetic typical of Seiko’s innovative chronographs of the period. ⸻ Dial Color: Black Dial layout includes: • Applied baton hour markers with luminous inserts • Central chronograph seconds hand in yellow • Day-date window at 3 o’clock • 30-minute chronograph sub-register at 6 o’clock Visible dial text: SEIKO 5 SPORTS Speed-Timer At lower dial edge: JAPAN 6139 8020T The afternarker dial has a strong vintage aesthetic and remains visually attractive. As expected with a watch of this age, minor signs of age or surface marks may be present. Please examine all photographs carefully. ⸻ Hands (aftermarket) • Baton hour and minute hands with luminous inserts • Bright yellow central chronograph seconds hand • Sub-dial chronograph hand at 6 o’clock Hands match the sporty chronograph design language of the Speed-Timer series. ⸻ Case Case material: Stainless steel Caseback engraving (exactly as visible): SEIKO STAINLESS STEEL 6139-8002 WATER RESISTANT 245795 JAPAN Case design: • Large 1970s cushion / tonneau-style case • Brushed stainless steel finish • Pump chronograph pushers • Screw-down caseback The case retains its bold vintage geometry and appears in excellent visual condition for its age. Typical size for this model: Approx. 40 mm diameter (without crown) ⸻ Movement Inside the watch beats the legendary: Seiko Calibre 6139 Features: • Automatic chronograph movement • Column wheel chronograph system • Vertical clutch system • Day-date function • Central chronograph seconds • 30-minute chronograph counter • 21 jewels • 21,600 vibrations per hour The 6139 movement is historically significant as one of the first automatic chronograph calibres ever introduced (1969) and was used in many iconic Seiko chronographs of the 1970s. The movement is visible in the provided photographs. Timekeeping: The watch keeps good time for a vintage mechanical chronograph. ⸻ Bracelet The watch is fitted with a stainless steel bracelet compatible with the case design. Bracelet style: • Integrated sports bracelet • Brushed stainless steel finish • Fold-over clasp with Seiko engraving The bracelet complements the bold 1970s chronograph design. ⸻ Condition Overall condition is very good for a vintage watch of this age. The watch presents extremely well visually and maintains the characteristic style of the Seiko Speed-Timer chronographs. Minor age-related marks may be present on the case, crystal, or dial due to age and use. All buyers are strongly advised to examine the photographs carefully as they form part of the description. ⸻ About the Seiko 6139 Series The Seiko 6139 chronograph family is historically important in horology. In 1969, Seiko introduced the 6139 as one of the world’s first automatic chronograph movements, competing with the Zenith El Primero and the Chronomatic consortium. The movement is notable for: • Column wheel chronograph architecture • Vertical clutch system (ahead of its time) • Reliable and robust automatic operation The Speed-Timer models became iconic sports watches of the 1970s and remain highly collectible today. ⸻ Important Notes No water-resistance guarantee due to the age of the watch. Vintage watch usage guidelines should be respected. All photos should be carefully examined before bidding. Import duties, VAT, customs taxes, stamp duties, and similar charges are the buyer’s responsibility. ⸻ Shipping The watch will be shipped using FedEx, UPS, or DHL for fast and secure international delivery. Before shipment: • Detailed photographs of the watch will be taken • A video recording of the watch will be made • The watch will be carefully packaged ⸻ This Seiko 6139-8002 Speed-Timer represents a classic piece of 1970s Japanese watchmaking and an important milestone in automatic chronograph history.