Offered in this auction by Second Vintage A superb example of Japanese mid-century horology, this Seiko Seikomatic beautifully encapsulates the sophisticated design language and mechanical innovation of the 1960s. Known for introducing advanced automatic calibers to the domestic market, the Seikomatic line remains highly celebrated among vintage enthusiasts. This particular example stands out with its distinctive day display positioned at six o'clock, a charming and highly sought-after configuration that perfectly balances the dial. With its graceful proportions and robust movement, it represents an exceptional opportunity to acquire a historically significant timepiece that is as reliable as it is elegant. Brand: Seiko Model: Seikomatic Reference Number: 6206-8040 Serial Number: 5917223 Movement: Automatic Caliber 6206, 26 Jewels Dial: Silver sunburst dial with applied faceted indices, presenting cleanly with mild, attractive age-consistent perimeter wear Case Size: 37 mm (excluding the crown) Case Material: Stainless steel Production Date: September 1965 Condition: Good vintage condition showcasing honest wear and a beautifully preserved movement Dial and Hands The watch features a striking silver sunburst dial that catches the light beautifully, accented by applied faceted baton indices with a prominent double marker at twelve o'clock. The applied Seiko logo sits proudly above the center arbor, while the printed Seikomatic Diashock script remains crisp and legible. A defining feature of this model is the framed day window located at six o'clock, complemented by the date window at three o'clock. The sharp dauphine hands retain their polished finish, sweeping gracefully across the dial. A visual inspection reveals a highly attractive presentation with light, even vintage aging and minor spotting near the outer edges, confirming its honest, untouched vintage nature. Case and Crystal The 37 mm stainless steel case is classically proportioned, featuring a smooth polished bezel and elegantly contoured lugs that display a pleasing transition between brushed upper surfaces and polished flanks. The recessed crown at four o'clock maintains the sleek, uninterrupted lines of the case profile. The case exhibits normal signs of wear, including superficial scratches and handling marks consistent with its age, yet it retains its strong structural integrity without heavy over-polishing. The domed acrylic crystal provides excellent clarity to the dial, showing only minor surface wear. Turning the watch over, the screw-down caseback is deeply engraved with the iconic Seiko dolphin motif, alongside clearly legible reference and serial numbers. Movement Powering this timepiece is the impressive Seiko Caliber 6206 automatic movement, featuring 26 jewels. The movement is a visual delight, highlighted by a rich gold-tone rotor and beautifully finished bridges. Close inspection of the movement reveals clean surfaces and clearly stamped caliber markings. Performing well within expected vintage tolerances; running strong and steady. The timegrapher results indicate a performance of -30 to -38 seconds per day. Strap The watch is fitted with a handsome period correct black leather strap featuring a classic embossed grain pattern. It is secured by a standard stainless steel pin buckle, offering a comfortable and dressy complement to the silver dial. Condition This Seikomatic is presented in good vintage condition. The stainless steel case shows honest, moderate wear with typical light scratches throughout, while the caseback engravings remain wonderfully sharp. The dial is remarkably well-preserved, displaying only mild age-related characteristics that enhance its authentic vintage appeal. The gold-tone automatic movement is visually exceptionally clean. Dimensions The case measures a versatile 37 mm in diameter excluding the recessed crown. Remarks This timepiece offers a fantastic blend of mid-century aesthetics and reliable Japanese engineering. The unique dial layout, combined with the beautifully decorated automatic movement, makes it a highly compelling addition to any focused vintage Seiko collection. History The Seikomatic family debuted in the early 1960s as Seiko's premium line of automatic watches, designed to offer superior winding efficiency and robust daily performance. The introduction of the Caliber 6206 brought the convenient day-date complication to the forefront, uniquely placing the day of the week at the six o'clock position to maintain dial symmetry. These models quickly became favorites among businessmen and watch aficionados alike, laying the mechanical groundwork for the legendary Grand Seiko and King Seiko automatic calibers that would soon follow. 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-SMD-0010