Seiko - King Seiko Hi-Beat 王月 (Ōgetsu) – Royal Moon - 5625-7000 - Men - 1969

Now available at auction from Second Vintage This exceptional timepiece represents one of the finest eras of Japanese watchmaking, embodying the "Grammar of Design" philosophy that defined Seiko's luxury output in the late 1960s. This King Seiko 56KS is a high-beat marvel, designed to compete directly with Swiss chronometers of the time, featuring a stunning monobloc case construction and the iconic gold medallion on the caseback. It stands as a testament to the internal rivalry between Seiko's Daini and Suwa factories, offering collectors a piece of horological history that combines angular precision with mechanical excellence. Brand: Seiko Model: King Seiko Reference Number: 5625-7000 Serial Number: 993880 Movement: Automatic Caliber 5625 Hi-Beat Dial: Silver Sunburst Case Size: 36 mm (excluding the crown) Case Material: Stainless Steel Production Year: 1969 Condition: Excellent vintage condition with a very well-preserved dial and sharp case lines, showing honest wear to the gold caseback medallion. Dial and Hands The silver sunburst dial is in remarkable condition, retaining a bright and consistent sheen without visible staining or damage. It features sharp, applied multifaceted baton indices with black central inserts, which are matched by the razor-sharp dauphine hands, enhancing legibility and elegance. The applied "Seiko" logo at 12 o'clock and the "KS Hi-Beat" text at 6 o'clock are crisp and distinct, accompanied by the Suwa Seikosha factory symbol. A framed date window sits at the 3 o'clock position. Case and Crystal The stainless steel case features the distinct angular lugs and flat surfaces characteristic of Tanaka's "Grammar of Design," appearing sharp and well-defined. This specific reference utilizes a monobloc front-loading case design, inscribed "Open Thru Glass" on the back, which increases structural integrity and water resistance. The caseback proudly displays the gold "KS" medallion, which is intact though shows signs of natural aging and oxidation typical for this specific reference. The original KS-signed crown is present. The crystal is clear and free of distracting marks. Movement Powering the watch is the high-grade Caliber 5625 automatic movement, a "Hi-Beat" mechanism operating at 28,800 vibrations per hour, known for its precision and durability. It offers reliable vintage performance and features a quickset date function. Current timegrapher testing shows the watch running between -35s and -40s per day, indicating the movement is operational and running. Strap The watch is fitted with a black leather strap featuring an embossed lizard grain pattern and contrasting white stitching, which complements the monochrome aesthetic of the dial and case. Condition This vintage King Seiko is in excellent condition. The case retains its original geometry with sharp edges, showing only light surface scratches consistent with careful use. The dial is pristine. The gold medallion on the caseback shows expected patina and edge wear but remains legible. Dimensions The case measures 36 mm in diameter excluding the crown, a classic size that offers a refined presence on the wrist. Remarks The 56KS series is highly regarded among collectors for offering Grand Seiko-level finishing and performance. This 5625-7000 reference is particularly desirable due to its early production date, "Waterproof" caseback marking, and the innovative front-loading case design. History Produced by the Suwa Seikosha factory in September 1969, this King Seiko emerged during the golden age of mechanical watchmaking in Japan. The King Seiko line was created to drive innovation through internal competition with Grand Seiko, resulting in watches that pushed the boundaries of accuracy and design. The 56KS series was one of the final and most successful iterations of this legendary lineage before the quartz revolution transformed the industry. / Second Vintage SKU: SEI-SKH-0019