Seiko King Seiko Hi-Beat 5626-7000 (1971)

Presented for auction by Second Vintage This King Seiko reference 5626-7000 stands as a magnificent testament to the golden era of Japanese watchmaking, embodying the legendary Grammar of Design principles established by Taro Tanaka. Created by the Suwa Seikosha factory, the 56KS series represents the pinnacle of Seiko’s efforts to conquer the global chronometry standards, offering a high-beat automatic movement housed in an architecturally striking case. This particular example captures the essence of vintage elegance, blending sharp, faceted geometry with a remarkably clean and beautifully preserved aesthetic that commands attention on the wrist. Brand: Seiko Model: King Seiko Reference Number: 5626-7000 Serial Number: 123444 Movement: Automatic Caliber 5626 Dial: Silver sunburst with applied faceted indices, exceptionally clean and well-preserved Case Size: 37 mm (excluding the crown) Case Material: Stainless Steel Production Year: 1971 Condition: Excellent vintage condition with a beautifully preserved dial and sharp case lines Dial and Hands The silver sunburst dial is a masterclass in mid-century horological design, catching the light dynamically across its finely brushed radial texture. It features prominent, applied faceted baton indices, each detailed with a central black stripe that perfectly matches the sharp, polished dauphine hands. The dial furniture includes an applied Seiko logo, the distinguished KS insignia, and the Suwa factory symbol positioned elegantly above the six o'clock marker. A framed day-date aperture sits at the three o'clock position, displaying the day in a striking blue font for Saturday. Careful visual inspection reveals a dial in stunning vintage condition, remaining exceptionally clean and free of moisture marks, notable spotting, or discoloration. The printing remains crisp and fully legible, showcasing an outstanding level of preservation. Case and Crystal The stainless steel case is a prime example of Seiko's Grammar of Design, characterized by its broad, flat surfaces and sharp, angular lugs. The case flanks transition beautifully into the polished bezel, maintaining highly defined edges and a strong visual presence. The watch exhibits honest, age-consistent signs of light wear, with minor handling marks that do not detract from the overall crispness of the factory profile. The original KS-signed crown sits flush against the case, retaining its deep and legible relief. Turning the watch over, the solid caseback is clearly engraved with the reference and serial numbers, along with the traditional King Seiko nomenclature. The dial is protected by a domed crystal that remains clear and highly legible, presenting the pristine dial beneath without distortion. Movement Powering this timepiece is the esteemed Seiko Caliber 5626, a high-beat automatic movement celebrated for its sophisticated engineering and smooth sweep. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The timegrapher reads an impressive -9 to -15 seconds per day, confirming the movement is running with excellent health and reliability. Strap The watch is fitted with a period-correct black leather strap featuring a classic crocodile grain pattern and contrasting edge stitching. The strap is supple and complements the formal yet versatile nature of the King Seiko, secured firmly by a stainless steel buckle. Condition This King Seiko survives in excellent vintage condition. The dial is a standout feature, remaining incredibly clean and vibrant. The stainless steel case has been preserved with care, retaining its sharp architectural lines and distinct chamfers with only minor, superficial signs of use. The caseback engravings are deep and fully intact. Dimensions The watch measures a perfectly proportioned 37 mm in diameter, excluding the crown. The lug-to-lug distance and case profile provide a substantial yet refined presence, sitting comfortably on the wrist and slipping easily under a cuff. Remarks Finding a 56KS with such a pristine dial and sharp case geometry is an increasingly difficult task for modern collectors. This piece represents a harmonious blend of high-precision Japanese engineering and iconic design, making it an essential addition for any serious enthusiast of vintage horology. History Introduced in the late 1960s, the King Seiko line was born out of an internal rivalry between Seiko’s Suwa and Daini factories, driving both facilities to produce some of the finest chronometers in the world. The 56KS series, produced by Suwa, introduced a refined high-beat automatic caliber that was both thinner and more reliable than its predecessors. These watches were designed to compete directly with elite Swiss manufacturers, and today they are revered for their uncompromising build quality, distinctive aesthetics, and historical importance in the evolution of the modern wristwatch. / Second Vintage SKU: SEI-SKX-0008