{"product_id":"king-seiko-56ks-hi-beat-ref-5621-7000-navy-blue-roman-numeral-dial","title":"King Seiko 56KS Hi-Beat Ref. 5621-7000","description":"\u003cp\u003eKing Seiko 56KS Hi-Beat Ref. 5621-7000 - Navy Blue Roman Numeral Dial, December 1970\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eAt first glance, the dial of this King Seiko might appear black. However, when light hits the surface, a deep navy blue tone emerges, and the large metal Roman numerals seem to stand out distinctly from the dial. The Ref. 5621-7000 represents a unique take within the 56KS family distinct from the typical baton-indexed models by blending the modern Japanese case geometry of the 1970s with a classic dress-watch aesthetic.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e**IMPORTANT NOTE: As this item ships from within the European Union, you will not be liable for customs duties within the EU.**\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis combination is not a later modification; the dark blue, Roman-numeral 5621-7000 listed in Seiko’s Japanese catalogs of the era under the code 56KA 024 was originally offered with this exact design. The code \"JAPAN 5621-7010T\" at the bottom of the dial is also consistent with this configuration. The numerals are not printed but are metal indices applied to the surface; this is why they appear as a distinct layer against the dark dial as the light shifts.\u003cbr\u003eThe serial number \"0D0550\" on the case back dates the watch to December 1970. The 56KS holds a special place in King Seiko history; developed by Suwa Seikosha, this family represents the brand's era of automatic, high-frequency movements. Inside, the 25-jewel Calibre 5621A features automatic winding with manual winding capability, a hacking function (stop-seconds), and beats at 28,800 vibrations per hour. The \"HI-BEAT\" inscription on the dial refers not to a 36,000 vph rate, but to the high-frequency \"8-beat\" architecture characteristic of that era.\u003cbr\u003eOne of the 5621’s most significant contributions to this dial is actually a feature it lacks: a date window. Unlike its siblings, the 5625 and 5626, the 5621 has no calendar function. Consequently, the large Roman numerals remain uninterrupted from XII to VI, forming a complete ring around the deep navy blue dial. Here, the no-date layout is not merely a technical choice; it is a design decision that defines the entire character of the dial.\u003cbr\u003eThe case is not a standard screw-back construction, either. Due to its monocoque body, the movement is accessed via the crystal rather than the case back; the \"OPEN THRU GLASS\" inscription on the back serves as a direct instruction for servicing. Measuring approximately 35.5 mm in diameter, the cushion-shaped case—featuring broad brushed upper surfaces, a polished bezel, and soft, flowing shoulders—has a commanding presence on the wrist that belies its modest size. The contrast between the classic Roman numeral dial and this modern case design is a key factor that sets the watch apart.\u003cbr\u003eThis particular example shows light signs of wear consistent with its age; however, the brushed texture, case geometry, and surface transitions remain crisp and well-defined. The KS-signed crown and the gold-toned King Seiko medallion on the case back are also remarkably well-preserved. The watch is fitted with a new brown leather strap and comes with a period-correct Seiko presentation box.\u003cbr\u003eFinal Thoughts\u003cbr\u003eWhat makes the 5621-7000 memorable is not just its navy blue dial, but the way it harmoniously blends two distinct design languages within a single timepiece. On the outside, it features the broad, modern cushion case typical of the 1970s; inside, there is a classic dial defined by uninterrupted applied Roman numerals. Dating to December 1970, this 56KA 024 is an exceptional King Seiko that conveys the automatic Hi-Beat engineering of the 56KS series—relying solely on its proportions and dial rather than ostentatious display.\u003c\/p\u003e\n\u003cp\u003eThe item shown was manufactured in 1970.\u003c\/p\u003e\n\u003cp\u003ePROFESSIONALLY FULLY SERVICED.\u003cbr\u003eThe movement was completely disassembled; every part was cleaned, lubricated, and precision-adjusted to ensure flawless operation. (It will not require further servicing for three years, provided it is not exposed to adverse conditions.)\u003cbr\u003eItem Condition: Tested; all functions are fully operational.\u003c\/p\u003e","brand":"Turgay's Watches","offers":[{"title":"Default Title","offer_id":68047460303069,"sku":"TW01127","price":925.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/3125\/0653\/files\/seiko-king-seiko-5621-7000-roman-dial-front-1.jpg?v=1791465708","url":"https:\/\/turgayswatches.com\/products\/king-seiko-56ks-hi-beat-ref-5621-7000-navy-blue-roman-numeral-dial","provider":"Turgay's Watches","version":"1.0","type":"link"}