Presented for auction by Second Vintage A beautifully preserved example of Seiko's mid-century design prowess, this elegant timepiece captures the essence of classic Japanese watchmaking. Combining a striking silver sunburst dial with a refined gold-plated case, this watch exemplifies the sophisticated aesthetic that defined Seiko's golden era. The distinctive dial furniture and reliable 21-jewel day-date caliber make it a highly wearable and collectible piece for enthusiasts of vintage Japanese horology. Brand: Seiko Model: SS Reference Number: 6306-8020 Serial Number: 6N6332 Movement: Automatic caliber 6306, 21 jewels Dial: Silver sunburst dial with applied gold-tone indices, presenting in an exceptionally clean and well-preserved state Case Size: 37 mm (excluding the crown) Case Material: Gold-plated with stainless steel caseback Production Year: 1976 Condition: Good vintage condition with honest case wear and an outstanding dial Dial and Hands The visual centerpiece of this timepiece is its striking silver sunburst dial, which catches the light beautifully and remains in remarkably clean condition without visible spotting or moisture damage. It features applied gold-tone baton indices, each detailed with a crisp black central stripe that perfectly matches the handset. The dial is elegantly appointed with an applied Seiko logo at twelve o'clock and an applied SS emblem above the printed 21 jewels text and Suwa factory symbol at six o'clock. A framed day-date aperture sits cleanly at three o'clock. The gold-tone hands exhibit the same black central striping, providing excellent legibility and visual harmony. The dial shows minimal signs of aging, presenting a crisp factory appearance that is highly desirable for collectors. Case and Crystal The 37 mm case features a classic profile with smoothly integrated lugs and a recessed crown positioned seamlessly at four o'clock. Constructed with Seiko Gold Plating, the case displays honest vintage wear, with visible plating loss and tarnishing along the sharp edges of the lugs and the bezel perimeter, consistent with its age and history. The stainless steel screw-down caseback remains in excellent shape, displaying deeply engraved factory markings including the serial number, reference number, and the Suwa factory emblem. The crystal sits cleanly above the dial, offering an unobstructed view of the pristine sunburst finish and hands, showing only very faint handling marks upon close inspection. Movement Ticking inside is a robust automatic movement, denoted by the 6306 reference, featuring 21 jewels and a practical day-date complication. The movement is protected by the sturdy stainless steel screw-down caseback. Running in vintage operational condition. Maintains the authentic mechanical character of the era. The timegrapher records a performance of -62 to -67 seconds per day. Strap The watch is fitted with a handsome brown leather strap, featuring striking yellow contrast stitching that complements the gold tones of the case and dial furniture. The strap is secured with a gold-tone pin buckle and exhibits light wear, remaining supple and ready for daily use. Condition This timepiece is presented in good vintage condition. The dial and hands are exceptionally well-preserved, standing out as the visual highlight of the watch. The gold-plated case shows expected signs of age, including localized plating wear on the lug tips and bezel edges, which adds authentic vintage character without detracting from its overall elegance. The caseback engravings remain sharp and fully legible. Dimensions The gold-plated case measures a versatile 37 mm in diameter, excluding the recessed crown. The lug profile and slim mid-case ensure a comfortable and elegant presence on the wrist, suitable for a variety of wrist sizes. Remarks This Seiko reference 6306-8020 is a testament to the enduring appeal of vintage Japanese design. The combination of a flawless sunburst dial, sharp applied indices, and a perfectly integrated case design makes it a versatile addition to any collection. The honest wear on the gold-plated case tells the story of a watch that was enjoyed, while the pristine dial ensures it remains a stunning piece to admire today. History During the 1970s, Seiko produced an incredible array of mechanical timepieces that pushed the boundaries of both design and reliability. The Suwa Seikosha factory, indicated by the distinctive logo on the dial and caseback, was responsible for some of the brand's most iconic and high-quality movements during this era. Watches from this period are celebrated for their meticulous dial finishing, robust automatic calibers, and timeless proportions, cementing Seiko's reputation as a global powerhouse in mechanical watchmaking. 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-SSJ-0003