Now available at auction from Second Vintage This 1966 Seiko offers a sought-after configuration among vintage collectors, distinguished by its attractive fluted bezel and the classic Seikomatic dial layout featuring a distinctive day window positioned at 6 o'clock. Brand: Seiko Model: Seikomatic Reference Number: 6206-8080 Serial Number: 6106006 Movement: Automatic caliber 6206A, 26 jewels Dial: Silver sunburst with day at 6 o'clock and date at 3 o'clock Case Size: 37 mm (excluding the crown) Case Material: Gold Plated Production Year: 1966 Condition: Fair vintage condition. Movement serviced on 21 July 2026. Timegrapher: +20+25s/day, running strong and steady. Dial and Hands The dial presents a classic silver sunburst finish that has aged to display an evenly patinated character, with visible spotting across the surface. Applied gold-tone indices complement the layout, which notably features a day window in English at 6 o'clock and a date aperture at 3 o'clock. The original gold-tone dauphine hands exhibit light aging, characterized by light oxidation and spotting on their surfaces. Case and Crystal The gold plated case, marked SGP, displays honest vintage wear with moderate scratches and handling marks throughout. Some plating wear is visible on the lug edges and flanks. The attractive fluted gold-tone bezel shows some dirt accumulation in its recesses and light wear to the plating on the high edges. The recessed crown, positioned at 4 o'clock, also reveals visible plating wear. On the reverse, the caseback features a dolphin medallion. A domed acrylic crystal protects the dial, showing light surface scratches and scuffs. Movement Inside beats the Seiko caliber 6206A, a 26-jewel automatic movement. The gold-colored plates and rotor present a clean visual appearance with no obvious corrosion or damage. Performing well within expected vintage tolerances; running strong and steady. The timegrapher records a rate of +20+25s/day. The movement was serviced on 21 July 2026. Strap The watch is paired with a period correct gold-tone beads-of-rice style bracelet. It presents significant overall wear, showing heavy plating loss on the center links that reveals the steel beneath. The bracelet accommodates a maximum wrist size of 18cm. Condition Good vintage condition. The movement was serviced on 21 July 2026 and, supported by the recorded timegrapher result, is running strong and steady. The case and fluted bezel show honest wear with moderate scratches and noticeable plating loss on the lug edges, flanks, and high points. The dial and hands display visible, even patina and spotting. The domed acrylic crystal bears light surface scratches, and the period correct beads-of-rice bracelet is heavily worn with significant plating loss on the center links. Dimensions The case measures 37 mm (excluding the crown). Remarks This Seikomatic is a highly attractive example of mid-century Japanese design. The combination of the fluted bezel, the distinctive 6 o'clock day window, and the classic dolphin caseback medallion makes this an appealing acquisition for any vintage Seiko enthusiast. History The Seikomatic line represents a significant era of innovation for Seiko during the 1960s, a period when the brand was rapidly advancing its automatic movement technology. The caliber 6206 was instrumental in establishing Seiko's reputation for reliable day-date complications, setting a standard for practical, everyday luxury. The inclusion of the day display at the 6 o'clock position and the signature dolphin medallion on the caseback are celebrated design elements from this era, reflecting the sophisticated aesthetic and mechanical ambition of 1960s Japanese watchmaking. 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-MDJ-0003