Seiko - King Seiko Hi-Beat - 5625-7000 - Uomo - 1969

Offered in this auction by Second Vintage A captivating example of Japanese horological mastery, this King Seiko embodies the celebrated Grammar of Design philosophy introduced by Taro Tanaka. Crafted to compete with the finest Swiss chronometers of its era, this piece represents a golden age of Seiko's high-frequency precision manufacturing, offering collectors a remarkably preserved slice of late 1960s watchmaking heritage. Brand: Seiko Model: King Seiko Hi-Beat Reference Number: 5625-7000 Serial Number: 955398 Movement: Caliber 5625 Automatic Dial: Silver sunburst dial with applied faceted indices, presenting an exceptionally clean and well-preserved surface free of visible spotting or damage Case Size: 37 mm Case Material: Stainless Steel Production Year: 1969 Condition: Excellent vintage condition with normal wear and a brilliantly preserved dial Dial and Hands The silver sunburst dial is a masterclass in mid-century finishing, catching the light beautifully and presenting in exceptionally clean condition. A thorough inspection reveals a meticulously preserved surface free of moisture marks, spotting, or discoloration. The dial features applied, multi-faceted baton indices with contrasting dark center stripes that perfectly match the sharp, polished dauphine hands. The applied Seiko and KS logos sit proudly above and below the center pinion, while the Suwa factory symbol is crisply printed above the six o'clock marker. The framed date aperture at three o'clock features clean, dark typography. The hands and indices remain brilliantly reflective, showcasing the meticulous attention to detail characteristic of the King Seiko line. Case and Crystal The stainless steel case exemplifies Taro Tanaka's Grammar of Design, featuring sharp, angular lugs with broad, flat polished planes. The transitions between the facets remain well-defined, displaying honest, light superficial scratches and handling marks consistent with careful vintage wear. The original KS-signed crown operates smoothly and remains sharply knurled. The watch is fitted with a clear, flat crystal that provides an unobstructed view of the pristine dial beneath. Turning the watch over reveals the solid caseback, notable for its one-piece, front-loading construction marked Open Thru Glass. The caseback proudly bears the iconic gold King Seiko medallion, which remains fully intact but displays localized areas of green oxidation and age-related wear, an authentic characteristic of these vintage medallions. Movement Powered by the esteemed caliber 5625 automatic movement, a high-frequency engine renowned for its reliability and precision during Seiko's golden era. While the movement is securely housed within the front-loading monocoque case, the dial and caseback markings clearly denote its high-beat mechanical pedigree. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The timegrapher results show the watch running between -5 to -8 seconds per day with strong amplitude. Strap The watch is paired with a rich burgundy textured leather strap featuring a classic crocodile grain pattern. The strap is completed with matching edge stitching and a polished stainless steel buckle, complementing the warm tones of the silver dial and the sharp lines of the steel case. Condition This King Seiko is presented in excellent vintage condition. The dial is the clear standout, remaining remarkably pure and free from expected age-related degradation. The stainless steel case retains its architectural sharpness, showing only moderate, honest surface wear without any deep gouges. The gold caseback medallion is present and highly legible, though it exhibits areas of green surface oxidation typical of its age. Overall, the timepiece balances superb dial preservation with an honestly worn, unpolished case appearance. Dimensions The beautifully proportioned case measures 37 mm in diameter excluding the signed crown. The lug design provides a substantial wrist presence while maintaining an elegant, dress-ready profile suitable for modern wear. Remarks The 56KS series represents a pinnacle of Seiko's internal competition and drive for chronometer-level perfection. Finding an example with such a pristine sunburst dial and sharp case geometry offers a tremendous opportunity for discerning collectors of vintage Japanese horology. History Introduced in the late 1960s, the King Seiko line was developed to showcase Japan's ability to manufacture high-beat, ultra-precise mechanical movements wrapped in cases featuring flat, highly polished surfaces and sharp angles. The 5625 reference specifically highlights the sophisticated automatic winding technology and elegant date complication that became a hallmark of the premium King Seiko catalog. These timepieces remain a testament to an era when Seiko redefined global standards for accuracy and exterior design. / Second Vintage SKU: SEI-SKH-0020