Presented for auction by Second Vintage The Seiko KS Vanac series represents one of the most daring and expressive eras of Japanese watchmaking, blending the high-end mechanical pedigree of King Seiko with the flamboyant, futuristic design language of the 1970s. This specific reference 5626-7180 is a tremendous example of the Vanac ethos, featuring a breathtaking gradient dial, a highly faceted crystal, and an angular case design that commands attention on the wrist. Highly sought after by collectors for its unique aesthetic and horological significance, this KS Vanac is a rare find in such remarkably well-preserved condition. Brand: Seiko Model: KS Vanac Reference Number: 5626-7180 Serial Number: 339971 Movement: Automatic caliber 5626B Dial: Gradient amber and brown textured dial with applied faceted indices, exceptionally clean Case Size: 37 mm (excluding the crown) Case Material: Stainless steel with gold-tone bezel Production Year: March 1973 Condition: Excellent vintage condition with a beautifully preserved dial and sharp case lines Dial and Hands The dial on this KS Vanac is an absolute standout, featuring a mesmerizing gradient that transitions from a rich amber-gold at the center to a deep, dark brown at the edges. A subtle, stardust-like metallic texture gives the surface incredible depth under lighting. The hour markers are bold, applied faceted blocks with white accents, perfectly complementing the intricate, striped gold-tone handset. A framed day-date aperture sits cleanly at the three o'clock position. The applied "SEIKO", "VANAC", and "KS" logos add further dimensionality to the display. The dial appears exceptionally clean, free from any distracting spots, moisture damage, or significant aging, presenting brilliantly for a watch of its era. Case and Crystal The 37mm stainless steel case exemplifies 1970s angular geometry, retaining sharp lug profiles and crisp transitions between its brushed and polished surfaces. A contrasting gold-tone bezel frames the dial, adding a touch of warmth and luxury to the bold design. The watch is fitted with a deeply faceted crystal that creates dynamic, kaleidoscopic reflections across the dial, a signature element of the Vanac line. The crystal presents well, allowing for a clear view of the dial below. The original "KS" signed crown is present and well-defined. The screw-down caseback clearly displays all factory engravings, including the reference and serial numbers. Movement Powering this timepiece is the Seiko automatic caliber 5626B, a 25-jewel movement renowned for its reliability and precision during the King Seiko era. Close inspection of the movement reveals clean bridges, a well-preserved rotor, and clear factory stampings. Performing well within expected vintage tolerances; running strong and steady, with timegrapher results showing a deviation of -31s to -35s/day. Strap The watch is presented on its original, highly distinctive stainless steel bracelet. The links feature a striking, jagged profile that perfectly matches the aggressive styling of the case. The folding clasp is deeply signed "VANAC," and the endlinks are stamped with the correct "XJB080" codes. The bracelet shows honest signs of light wear consistent with its age and will accommodate a wrist size up to 18cm. Condition This Seiko KS Vanac is in excellent vintage condition. The case retains its factory angles and sharp lines, showing only light, honest handling marks. The highly sought-after gradient dial is exceptionally well-preserved, showing no visible flaws or damage. The faceted crystal and original signed bracelet complete this outstanding collector's package. Dimensions Case Size: 37 mm (excluding the crown) Wrist Size: 18 cm Remarks A truly exceptional example of 1970s Seiko design, combining the high-beat mechanical excellence of the King Seiko lineage with the unmatched visual flair of the Vanac series. History Introduced in the early 1970s, the Vanac line was a sub-brand of King Seiko aimed at a younger, more fashion-conscious demographic. While standard King Seikos adhered to classic, conservative dress watch codes, the Vanac series embraced the bold, colorful, and geometric trends of the decade. Characterized by faceted crystals, vibrant gradient dials, and integrated or uniquely styled bracelets, the Vanac models housed the exact same high-grade movements as their more traditional counterparts. Today, they are celebrated as some of the most characterful and interesting vintage Seikos available, capturing a unique moment in horological history. Payment and Shipping Payment must be completed within 1–3 days after purchase. Your watch will be professionally and very securely packaged, and shipped with tracking and insurance for your peace of mind. We ship via fast express service, with typical delivery in 1–4 business days (destination dependent). Note that with vintage watches, minor signs of wear, aging, or imperfections may be present and are considered normal for watches of this age. Please review all photos carefully before bidding. We strive to photograph each watch from multiple angles for the most accurate representation. The photos form an important part of the description. If there are any concerns of functionality or defects after delivery, make sure to contact us within 3 days of receiving the watch so we can assist you. As with all vintage watches, water resistance is not guaranteed. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: SEI-SKV-0012