Now available at auction from Second Vintage The Seikomatic line represents a golden era of Japanese watchmaking, serving as a premium offering in the 1960s that showcased Seiko's advancements in automatic movements and refined case design. This particular reference 6206-8040 stands out with its highly desirable and architecturally interesting dial layout, featuring the day of the week positioned at the 6 o'clock mark. Combined with a recessed crown that emphasizes its automatic nature, this timepiece is a wonderful example of mid-century horological elegance, offering collectors a sophisticated dress watch with a distinct character. Brand: Seiko Model: Seikomatic Reference Number: 6206-8040 Serial Number: 5D05454 Movement: Automatic Caliber 6206B Dial: Silver sunburst dial with applied gold-tone indices and unique 6 o'clock day window, exceptionally clean and well-preserved Case Size: 36 mm (excluding the crown) Case Material: Gold Plated (EGP) with Stainless Steel caseback Production Year: 1965 Condition: Good vintage condition with a beautifully preserved dial and honest case wear Dial and Hands The dial of this Seikomatic is a visual delight, presenting a brilliant silver sunburst finish that catches the light beautifully. The typography is crisp and perfectly preserved, with "Seikomatic Diashock 26 Jewels" proudly displayed above the 6 o'clock position. The dial furniture is executed in a rich gold-tone, featuring an applied Seiko logo and prominent, multi-faceted baton indices that add significant depth to the display, anchored by a double baton at the 12 o'clock position. The standout feature is the framed day window at 6 o'clock, perfectly balanced by the framed date window at 3 o'clock. The sharp, gold-tone dauphine hands and sweeping seconds hand remain in excellent condition. A close inspection reveals a remarkably clean dial, free from moisture marks, spotting, or significant aging, making it a standout feature of this vintage piece. Case and Crystal The 36mm case is executed in heavy gold plating (EGP) over base metal, featuring a classic round profile with elegantly sweeping lugs. The crown is thoughtfully recessed at the 4 o'clock position, a signature design choice of the era meant to highlight the convenience of the automatic winding system. The case exhibits honest signs of vintage wear, with visible rubbing and brassing to the gold plating, particularly along the lug edges, flanks, and bezel, which is entirely consistent with a well-enjoyed plated watch of this vintage. The watch is fitted with a clean, domed acrylic crystal that offers a clear view of the stunning dial. The stainless steel screw-down caseback is well-preserved, showcasing a crisp engraving of the Seiko dolphin motif along with clearly legible reference and serial numbers. Movement Powering this timepiece is the Seiko automatic caliber 6206B, a 26-jewel movement known for its robust construction and reliability. The movement presents beautifully, with a bright gold-tone rotor and clean, well-finished bridges. Close-up images confirm the caliber designation stamped clearly on the mechanism. Performing well within expected vintage tolerances; running strong and steady. Timegrapher results show +34 to +38 s/d. Strap The watch is paired with a handsome burgundy leather strap featuring contrasting stitching. The strap is secured with a gold-tone pin buckle that complements the case material, offering a comfortable and period-appropriate aesthetic. Condition This Seikomatic is presented in good vintage condition. The primary value driver, the dial, is exceptionally well-preserved and visually stunning. The gold-plated case shows expected, honest wear with visible brassing on the high-contact areas, retaining its fundamental shape and vintage charm. The stainless steel caseback remains crisp, and the movement is clean and fully operational. Dimensions The case measures 36 mm in diameter, excluding the recessed crown, providing a classic and highly wearable vintage proportion suitable for a variety of wrist sizes. Remarks With its unique 6 o'clock day display and beautifully preserved sunburst dial, this Seikomatic offers a fantastic opportunity to acquire a distinctive and historically significant Seiko dress watch. The contrast between the pristine dial and the gently aged case gives the watch a wonderful sense of history and character. History Introduced in the early 1960s, the Seikomatic range was designed to be a high-end automatic watch for the discerning professional. The line was instrumental in popularizing automatic winding technology in Japan, often omitting manual winding capabilities and hiding the crown to emphasize that the watch wound itself simply by being worn. The caliber 6206, with its unique day-date layout, remains a favorite among Seiko collectors for its mechanical reliability and its contribution to the distinctive design language of 1960s Japanese horology. 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-SDX-0001