Available now on auction by Second Vintage
This distinctive timepiece captures the bold and experimental spirit of 1970s Japanese watchmaking, offering a unique blend of high-grade engineering and avant-garde design. As part of the highly collectible King Seiko Vanac line, this model combines the precision of the legendary 56-series movement with an aesthetic that is unmistakably retro-futuristic. With its vibrant emerald green dial and faceted crystal, this watch is a standout example of Seiko’s golden era, perfect for the collector seeking both mechanical excellence and striking visual flair.
Brand: Seiko
Model: King Seiko Vanac
Reference Number: 5626-7190
Serial Number: 371639
Movement: Automatic Caliber 5626A
Dial: Emerald green sunburst with faceted indices
Case Size: 37 mm (excluding the crown)
Case Material: Stainless Steel
Production Year: 1973
Condition: Good vintage condition. The watch presents an honest and attractive appearance with visible wear to the faceted crystal and case consistent with age, while the dial remains vibrant and well-preserved.
Dial and Hands
The dial is the centerpiece of this watch, featuring a stunning emerald green sunburst finish that plays beautifully with the light. It is adorned with the distinctive Vanac-style applied indices, which are faceted blocks featuring gold-tone centers and silver-tone surrounds, creating a unique three-dimensional effect. The dial text is crisp, displaying applied Seiko, Vanac, and KS logos in silver and gold tones. A framed day-date window is positioned at three o'clock. The silver baton hands are original to the design, featuring a slender profile that complements the geometric markers.
Case and Crystal
The stainless steel case features the sharp, angular geometry characteristic of the 1970s "Grammar of Design" evolution found in the Vanac series. The case lines remain defined, showing honest signs of wear, surface scratches, and light dings expected from a vintage piece of this era. The watch is fitted with its signature faceted mineral crystal, which consists of multiple geometric planes. The crystal shows visible scratching and wear along the facet edges, which is typical for these specific models, yet it retains good transparency and adds to the vintage character.
Movement
Powering this timepiece is the high-grade Seiko Caliber 5626A, a 25-jewel automatic movement synonymous with the King Seiko line. This movement is renowned for its robustness and engineering quality. The movement is clean and is currently running at -20 to -25 seconds per day, which indicates a healthy movement offering reliable vintage performance.
Strap
The watch is paired with a textured green leather strap featuring contrasting white stitching. The strap color has been selected to perfectly compliment the vibrant tones of the dial, creating a cohesive and stylish look on the wrist.
Condition
This timepiece is in good vintage condition. The dial is in excellent state with vivid coloration and no signs of moisture damage. The case shows general wear appropriate for its age but retains its original angular form. The faceted crystal displays scratches and wear marks on the edges. The movement is functioning correctly and the quickset features are operational.
Dimensions
The case measures 37 mm in diameter excluding the crown, offering a classic mid-size fit that sits comfortably on the wrist while maintaining a strong visual presence due to the angular case design.
Remarks
The King Seiko Vanac series represents a fascinating chapter in Seiko's history, where high-end movement finishing met the colorful, eccentric design language of the 1970s. Finding a Vanac with such a vibrant green dial is a treat for collectors. This Reference 5626-7190 is a testament to the creativity of the era, offering a high-beat grade movement inside a piece of wearable art. It is a conversation starter that offers genuine horological value.
History
King Seiko was established as a high-end brand to compete internally with Grand Seiko, driving innovation and precision within the company. In the early 1970s, as quartz technology began to rise, Seiko released the Vanac sub-line under the King Seiko umbrella. These watches were designed to appeal to a younger, fashion-forward demographic, utilizing high-quality mechanical movements housed in colorful, faceted, and geometric designs. Today, the Vanac line is celebrated for its daring aesthetics and remains a cult favorite among vintage Seiko enthusiasts.
/ Second Vintage
SKU: SEI-SKV-0014






















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Seiko - King Seiko Vanac 王華 (Ōka) – Royal Splendor - No reserve price - 5626-7190 - Men - 1973
Seiko • 1973
Sold for
€397
Sold on Feb 15, 2026
37 bids131 watching
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