Presented for auction by Second Vintage An exceptional piece of Japanese horological history, this Grand Seiko reference 6145-8000 embodies the pinnacle of precision and design from the late 1960s. Representing the esteemed 61GS family, this reference was renowned for housing Seiko's first automatic high-beat movement, a marvel that rivaled the absolute best chronometers of the era. The watch showcases Taro Tanaka's legendary Grammar of Design rules with its sharp, faceted gold-capped case that plays brilliantly with light. Complete with its pristine original gold GS caseback medallion, this timepiece offers an incredible opportunity for collectors to acquire a legendary high-frequency Grand Seiko with immense historic appeal and a stunning aesthetic presence. Brand: Seiko Model: Grand Seiko Hi-Beat 36000 Reference Number: 6145-8000 Serial Number: 953905 Movement: Automatic Caliber 6145 Dial: Silver sunburst with applied gold-tone indices Case Size: 36 mm Case Material: Gold-capped over stainless steel Production Year: 1969 Condition: Excellent vintage condition. Timegrapher reads minus 5 to 8 seconds per day with strong amplitude, which indicates a highly healthy movement offering reliable vintage performance. Dial and Hands The striking silver sunburst dial is exceptionally well preserved, radiating a beautiful luster under various lighting conditions. It features prominent, multi-faceted applied gold-tone hour markers that exhibit a mirror-like finish, perfectly capturing the light from every angle. The dauphine hands are crisp and sharp, finished with a central black stripe for high legibility and elegance, remaining in wonderful condition without any signs of severe oxidation. The applied Seiko and GS logos are meticulously crafted, maintaining the luxurious standard expected from Grand Seiko. The date aperture at three o'clock is cleanly framed in gold, rounding out a highly attractive and sophisticated dial presentation. Case and Crystal The 36 mm gold-capped case displays the iconic Grammar of Design aesthetic, featuring sharp, sweeping lines and robust lugs with distinct flat surfaces. It remains in excellent vintage condition, showing honest and expected light wear and surface marks that do not detract from its impressive geometric profile. The gold capping retains a rich, warm tone throughout, offering a commanding presence on the wrist. Turn the watch over, and the stainless steel caseback reveals the highly coveted and original solid gold GS medallion, which is remarkably crisp, intact, and free from heavy deterioration. The crystal is clear and smooth, providing an unobstructed view of the stunning dial beneath. Movement Powering this exceptional timepiece is the legendary Seiko automatic Caliber 6145, a high-beat marvel operating at 36,000 vibrations per hour. This advanced movement was designed to offer unparalleled accuracy, utilizing a rapid beat rate to minimize the effects of positional variance and physical shocks. The sweep of the seconds hand is mesmerizingly smooth, a true hallmark of high-frequency engineering. The timegrapher results indicate an impressive minus 5 to 8 seconds per day with strong amplitude, which indicates a highly healthy movement offering reliable vintage performance for the discerning collector. Strap The watch is paired with a high-quality textured black leather strap, tastefully accented with vibrant orange contrast stitching. This choice of strap beautifully complements the warm gold tones of the case and hands while providing a comfortable and secure fit on the wrist, culminating in a gold-tone buckle that completes the vintage aesthetic perfectly. Condition Assessed overall in excellent vintage condition, this Grand Seiko has been preserved with tremendous respect. The dial is stunningly clean with only the faintest signs of age, while the gold-capped case maintains strong structural integrity and appealing vintage character through minor surface wear. The outstanding preservation of the caseback medallion is a significant highlight, adding immense collector value to the piece. Coupled with the robust timegrapher performance, this watch stands out as a highly desirable and well cared for vintage acquisition. Dimensions The case measures an elegant 36 mm in diameter excluding the crown. The classic proportions ensure a balanced and extremely comfortable fit, sitting gracefully on the wrist and perfectly suited for modern and vintage enthusiasts alike. Remarks It is becoming increasingly difficult to find early Grand Seiko models, particularly the legendary 61GS series, retaining their original case lines and a pristine gold medallion. The gold-capped version of the 6145-8000 offers a luxurious aesthetic while retaining the daily durability of a stainless steel core. This is a brilliant masterclass in mid-century Japanese design and engineering, ready to elevate any serious collection with its prestigious high-beat heritage. History Introduced in 1968, the 61GS series marked a monumental achievement for Suwa Seikosha as the first automatic 36,000 bph Grand Seiko. During this golden era of mechanical watchmaking, Seiko was fiercely competing in Swiss chronometer trials, and the innovative technology developed for those competitions trickled directly into consumer watches like the 6145-8000. Embracing the strict aesthetic guidelines of the Grammar of Design, the 61GS was built to sparkle brilliantly and reflect light perfectly without distortion. Today, the 61GS is widely regarded as one of the finest and most historically significant vintage Grand Seikos ever produced, representing the ultimate pursuit of accuracy and beauty. 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-SGH-0003