Brand: Seiko

Model: 5 Sports Speed-Timer Automatic Chronograph ref. 6139-8002 (JDM Model) circa April of 1972

Case: Solid stainless steel case with screw-down back is approximately 40mm excluding the original unsigned crown and pushers

Bracelet: Rare original 19mm Seiko 5 Sports stainless steel bracelet with signed fold-over clasp and removable links; will fit wrist sizes up to approximately 7" (optional clasp extension can be installed to accommodate larger wrist sizes)

Movement: Seiko cal. 6139 self-winding automatic chronograph with quick-set day (two languages) and quick-set date; 21,600 BPH; Japan

Features: Stunning original brushed metallic blue/grey/purple dial with red accents and 15-minute blue regatta totalizer at 6 o'clock; original white and black luminous hands; original orange chronograph register hands; blacked out day-date display at 3 o'clock with red Sunday text (can choose between Japanese "Kanji" or English days of the week); unpolished 40mm stainless steel case with factory Seiko mineral glass crystal; rare original Seiko 5 Sports JDM bracelet; in-house Seiko 6139 column-wheel chronograph movement (serviced)

Condition: Fantastic original condition overall with honest wear consistent with age and use; 40mm solid stainless steel case appears to be unpolished with apparent "sleeve" wear; crisp screw-down caseback remains clearly legible; gorgeous original brushed metallic dial with crisp printing, vibrant colors, and all luminous material in tact; excellent original hands with all luminous material in tact and matching; original orange chronograph register hands remain bright and vibrant; new old stock factory Seiko mineral glass crystal; nice original Seiko 5 Sports bracelet matches the overall condition of the watch

Other: This incredible vintage JDM Seiko Speed-Timer is the definition of cool - How did Seiko pack so many features into one watch while retaining such a balanced and appealing design aesthetic? We love the blue 15-minute regatta sub-register and blacked out day-date display against the exotic metallic dial that shifts colors between blue, grey, and purple depending on the lighting. This is by far the most exciting dial option on the -8002 in our humble opinion! Seiko opted for orange chronograph hands on this model for increased legibility and it all just works so well. How cool is the Japanese "Kanji" day display? Especially on Sunday when it turns to red... This particular Speed-Timer comes in collector-grade condition on its rare original Seiko 5 Sports bracelet and is ready to pair with your Japanese sports car (i.e. a Honda S2000 in Suzuka Blue).

For peace of mind, the Seiko 6139 movement has just been completely overhauled by our watchmaker with a new old stock factory Seiko mineral glass crystal and fresh gaskets installed at the time of service. Speaking of the 6139 movement, it was quite possibly the very first automatic chronograph movement to come to market commercially (May of 1969). The Zenith El Primero and Heuer cal. 11 movements also debuted that year. You can read more about this controversial topic from our friends at HODINKEE and OnTheDash. Regardless of which movement actually came first, the Seiko 6139 is a steal in the marketplace today compared to comparable watches from Heuer and Zenith.