{"product_id":"seiko-5-sports-speedtimer-6139-8040","title":"Seiko 5 Sports Speedtimer 6139-8040","description":"\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan lang=\"EN-GB\"\u003eThe watch\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003eSeiko 5 Sports Speedtimer 6139-8040 with one of the most striking dial layouts from the 1970s Seiko catalogue. The green sunburst dial, blue 30-minute chronograph register and orange chronograph hand give this reference a very distinct look, playful but still balanced on the wrist.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eThe 39mm case wears slightly larger than many vintage Seikos from the same period, making it a very easy modern size. The angular case shape, polished accents and brushed surfaces give the watch plenty of presence without feeling oversized. The day-date display sits neatly at 3 o’clock, while the chronograph is operated by the two pushers on the side of the case. The central orange hand is used for the chronograph function, not as a running seconds hand. Quickset works as it should.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eThis example is in excellent condition. The dial is clean and vibrant, with strong colours and a very attractive sunburst effect. The case remains sharp and well presented, with only light signs of use. There is a light scratch on the lower lug and a small mark on the crystal just above the centre, both visible on close inspection rather than distracting on the wrist.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eThe watch is fitted to a good quality aftermarket bracelet from the same era. It suits the watch very well and has the correct 1970s Seiko character, sitting close in appearance to the original bracelet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eA rare and very charismatic Seiko automatic chronograph, especially desirable in this green and blue configuration. Clean, colourful, and genuinely interesting without being loud.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan lang=\"EN-GB\"\u003eDetails\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003eThe Seiko 5 Sports Speedtimer line belongs to Seiko’s early generation of automatic chronographs, introduced at a time when the brand was pushing hard into technically advanced, colourful sports watches. These models combined the practical Seiko 5 formula with a proper automatic chronograph movement, often paired with bold 1970s dial designs and compact, wearable case shapes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eInside this reference is Seiko’s 6139 movement, one of the most important automatic chronograph calibres of its era. It uses a vertical clutch and column wheel, a technically sophisticated setup that gives the chronograph a smooth, precise feel. The layout is simple and purposeful: central chronograph seconds, a 30-minute register, and a day-date display. It is a movement with real historical weight, but also one that still feels very usable today.\u003c\/span\u003e\u003c\/p\u003e","brand":"Studio Tokei","offers":[{"title":"Default Title","offer_id":54381117899098,"sku":"S6139-76-001","price":575.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/1532\/2714\/files\/IMG_0370.jpg?v=1782917222","url":"https:\/\/studiotokei.com\/products\/seiko-5-sports-speedtimer-6139-8040","provider":"Studio Tokei","version":"1.0","type":"link"}