Seiko Grand Seiko Hi-Beat 6146-8000 (1969)

Now available at auction from Second Vintage This sought-after Grand Seiko 6146-8000 is an iconic vintage model, celebrated for its high-beat mechanical prowess and classic Taro Tanaka case geometry. Featuring an exceptionally sharp case that retains its original lines and an intact gold caseback medallion, this 1969 example offers collectors a pristine dial and a beautifully preserved presence on the wrist. Brand: Seiko Model: Grand Seiko Hi-Beat Reference Number: 6146-8000 Serial Number: 9D0903 Movement: Automatic, Caliber 6146A Dial: Silver/white sunburst with applied indices and day/date window Case Size: 37 mm (excluding the crown) Case Material: Stainless steel Production Year: 1969 Condition: Excellent vintage condition. Movement serviced on 6 August 2026. Timegrapher: -15-17s/day Movement Serviced on 6/8/2026, performing remarkably well. Dial and Hands The watch features a pristine silver and white sunburst dial with sharp applied furniture and clear printing. The applied SEIKO and GS logos are crisp, while the faceted indices remain bright and free of oxidation. The day and date window frame is exceptionally clean, completing the balanced layout. The dauphine style hands feature black center stripes and bright, reflective polished surfaces, showing no visible corrosion or oxidation, perfectly matching the dial's excellent condition. Case and Crystal The stainless steel case is exceptionally well-preserved, retaining its sharp original Grammar of Design geometry with well-defined edges and clear transitions between the brushed flats and polished flanks. It shows only light superficial scratches consistent with careful wear. The smooth polished bezel, integrated with the case design, exhibits light hairline scratches visible under magnification but bears no major dings or dents. The crown is signed with the GS logo, features well-defined knurling, and shows minor wear consistent with the case. On the reverse, the caseback engravings are crisp and fully legible, highlighted by an intact and well-preserved gold GS medallion. The flat crystal is clear, presenting no significant scratches, chips, or crazing, and provides an unobstructed view of the dial. Movement Inside beats the caliber 6146A automatic movement, which appears very clean with bright plates and bridges. The signed rotor features a brushed finish, and there is no visible corrosion, oxidation, or damaged screw heads. The engravings are crisp and clear, proudly displaying SEIKO, FIVE 5 ADJUSTMENTS, TWENTY FIVE 25 JEWELS, JAPAN 6146A, and 299901. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The movement was serviced on 6 August 2026. Strap The watch is fitted with an attractive black leather strap featuring contrasting white stitching, which complements the timepiece nicely. It shows light creasing from careful use. Condition Excellent vintage condition. The movement was serviced on 6 August 2026 and, supported by the recorded timegrapher result, is performing very strongly. The case is exceptionally well-preserved, retaining its original sharp lines and intact gold medallion, showing only light superficial scratches consistent with careful wear. The dial is pristine, with crisp applied furniture and clear printing, perfectly matched by clean original hands. The crystal is clear, and the movement remains visually excellent. Dimensions The case size is 37 mm (excluding the crown). Remarks This highly sought-after Grand Seiko 6146-8000 represents an outstanding opportunity for the discerning collector. The combination of its pristine sunburst dial, remarkably sharp Grammar of Design case geometry, and the intact gold caseback medallion make it a superb example of a classic reference. History The Grand Seiko 6146-8000 is a highly regarded vintage model produced in 1969, sought after by collectors for its advanced 36,000 bph movement and classic Taro Tanaka Grammar of Design case. It represents a pinnacle of Seiko's mechanical watchmaking during this era, establishing a visual and technical standard that remains highly respected in the modern collecting community. Payment and Shipping Payment must be completed within 1–3 days after purchase. Your watch will be professionally and securely packaged, then shipped with tracking and insurance for your peace of mind. We use fast express shipping, with typical delivery within 1–4 business days, depending on the destination. Please note that vintage watches may show minor signs of wear, aging, or imperfections, which are considered normal for watches of this age. We kindly ask you to review all photos carefully before bidding. We photograph each watch from multiple angles to provide the most accurate representation possible, and the photos form an important part of the description. The timegrapher assessment if provided is seen as an indication of the movement’s condition under fully wound testing conditions. As with all vintage watches, results may vary in daily use. If you have any concerns regarding functionality or defects after delivery, please contact us within 3 days of receiving the watch so we can assist you. As with all used watches, water resistance is not guaranteed. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: SEI-AGH-0002