Seiko Seikomatic 6206-8040 (1965)

Now available at auction from Second Vintage Presented here is a classic 1960s Seikomatic, distinguished by its exceptionally clean silver sunburst dial and the distinctive dolphin caseback medallion. This handsome timepiece showcases the charm of mid-century Japanese design, complete with a recessed crown and an integrated day-date display. Brand: Seiko Model: Seikomatic Reference Number: 6206-8040 Serial Number: 5D05761 Movement: Automatic caliber 6206B, 26 jewels Dial: Silver sunburst with applied gold-tone indices Case Size: 36 mm (excluding the crown) Case Material: Electro Gold Plated (EGP), stainless steel caseback Production Year: 1965 Condition: Good vintage condition. Timegrapher: -55-59s/day, running in operational condition. Dial and Hands The dial presents an exceptionally clean silver sunburst finish that catches the light beautifully. Applied gold-tone indices are bright, well preserved, and provide excellent contrast against the subtle dial texture. All printed text, including the Seikomatic and Diashock signatures, remains crisp and fully intact. The day and date windows are clean, featuring clear typography that is highly legible. Matching the indices, the gold-tone dauphine hands are sharp and well preserved, with clean surfaces and minimal signs of oxidation, ensuring strong visual consistency across the face of the watch. Case and Crystal The electro gold-plated case retains good overall geometry, displaying honest wear consistent with its age. Visible scratches and handling marks are present, along with minor plating wear located on the lug edges and case flanks. A thin gold-tone bezel integrates neatly with the case design, showing light scratches and minor wear that match the condition of the case. Positioned discreetly at four o'clock is a recessed crown. The stainless steel caseback features a well-preserved dolphin medallion with clear engravings. Protecting the dial is a domed acrylic crystal that remains clear, showing no major scratches, cracks, or crazing. Movement Inside this timepiece beats the automatic Seiko caliber 6206B, a 26-jewel movement featuring gold-colored plates and a matching rotor. The movement maintains a clean appearance with no visible corrosion or significant scratches, while the screws and visible components appear well preserved. The plates are clearly engraved with the Seiko name, jewel count, and caliber designation. Timegrapher: -55-59s/day. Running in operational condition. Maintains the authentic mechanical character of the watch. Strap The watch is fitted with a brown leather strap featuring contrast stitching. The material shows moderate wear and creasing, providing an attractive complement to the gold-tone case and silver dial. Condition Good vintage condition. The watch exhibits honest wear consistent with its age, retaining good overall geometry. The electro gold-plated case shows visible scratches, handling marks, and minor plating wear on the lug edges and flanks. The dial and hands are exceptionally clean and well preserved, standing out as a highlight of the piece. The crystal is clear and free of major flaws. The strap shows moderate wear and creasing. The movement is running, and the timegrapher results reflect its current operational status. Dimensions The case measures 36 mm in diameter (excluding the crown). Remarks This Seikomatic offers a highly attractive silver sunburst dial and a beautifully preserved dolphin caseback medallion. Powered by the reliable caliber 6206B, it represents a strong example of classic 1960s Japanese design. History The Seikomatic line represents an important era in the development of automatic watches in Japan, bringing sophisticated mechanical features to a broader audience during the 1960s. The introduction of the caliber 6206 brought the day-date complication to the Seikomatic family, notably utilizing a distinctive six o'clock position for the day window. This movement architecture paved the way for many of the brand's highly successful automatic models, cementing the Seikomatic as a significant milestone in mid-century horology. 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-MJD-0005