{"product_id":"seiko-1969-king-seiko-superior-chronometer-hi-beat","title":"Seiko - 1969 King Seiko Superior Chronometer Hi-Beat 45-8010","description":"\u003cp data-end=\"1473\" data-start=\"1200\"\u003eWHAT WE LOVE:\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe King Seiko 45-8010 Superior Chronometer is one of the rarest and most revered references in all of vintage Seiko collecting — and the \"Superior Chronometer\" designation is not a marketing phrase. It is a technical classification, earned through independent certification, that tells a precise and remarkable story.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe standard 45-8010 Chronometer was already a serious achievement — independently certified by the Japan Chronometer Inspection Institute (JCII, established 1968) to Seiko's internal 'A' accuracy grade of -1 to +10 seconds per day. The Superior Chronometer designation applied only to movements that went further: those that met the 'AA' accuracy grade of -3 to +6 seconds per day. This was the same precision standard demanded of Grand Seiko from 1966 onwards. In other words, the Superior Chronometer examples of the 45-8010 were, in measured accuracy terms, Grand Seiko's equals — produced under the King Seiko name, and available today at a fraction of the price equivalent Grand Seiko references command.\u003c\/p\u003e\n\u003cp\u003eThe production window for Superior Chronometer examples was extraordinarily short — essentially limited to 1969, making this one of the last King Seikos to carry the Hi-Beat 36,000 bph movement. The case is the distinctive \"pebble\" or turtle-shaped 8010 architecture — shorter, stubbier lugs than the earlier 7010s, with case flanks that slope sharply downward to create a convex, organic profile that is immediately identifiable and completely beautiful at 37mm. The white sunburst dial carries the full text \"Superior Chronometer Officially Certified\" — a declaration that appears on very few watches from any manufacturer, Japanese or Swiss, at any price — alongside \"Hi-Beat\" at the bottom, signed \"KS\" at 6 o'clock. The applied hour markers with their single black stripe running through centre, matched by the hands, create a dial language that is entirely its own.\u003c\/p\u003e\n\u003cp data-end=\"1473\" data-start=\"1200\"\u003eWHAT'S INSIDE:\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eThe 45-8010 is powered by the Seiko Calibre 4500A — the hand-wound version of the celebrated Calibre 45 family, beating at 36,000 vibrations per hour (10 beats per second). This is the same high frequency that Grand Seiko's Hi-Beat movements would later become famous for, applied here in a manually wound format that many collectors consider the purest expression of the calibre's capabilities. \u003cmeta charset=\"utf-8\"\u003eServiced May 2026.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-end=\"1473\" data-start=\"1200\"\u003e\u003cspan class=\"s1\"\u003eFIVEFORTYFIVE SIX MONTHS \u003c\/span\u003e\u003cspan style=\"color: rgb(255, 42, 0);\" class=\"s2\"\u003eWARRANTY\u003c\/span\u003e\u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":53483649171729,"sku":"24393","price":1750.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0072\/5332\/7960\/files\/Seiko-1969-King-Seiko-Superior-Chronometer-Hi-Beat243931-7.jpg?v=1779164014","url":"https:\/\/fivefortyfive.nz\/products\/seiko-1969-king-seiko-superior-chronometer-hi-beat","provider":"FiveFortyFive","version":"1.0","type":"link"}