Offered in this auction by Second Vintage This exceptional 1960s timepiece represents a golden era of Japanese watchmaking, showcasing the elegance and technical prowess of the Seikomatic line. With its highly desirable "Weekdater" layout featuring a Kanji day wheel at the six o'clock position, this watch offers a distinct and collectible aesthetic that appeals to vintage enthusiasts and Seiko collectors alike. Brand: Seiko Model: Seikomatic Reference Number: 6206-8100 Serial Number: 6219478 Movement: Automatic Caliber 6206B Dial: Silver sunburst with Kanji day display Case Size: 36 mm (excluding the crown) Case Material: Stainless Steel Production Year: 1966 Condition: Good vintage condition. The dial is in stunning preservation, while the case and bezel show honest signs of age and character. Timegrapher testing indicates -35 to -41 seconds per day, which indicates a healthy movement. Dial and Hands The highlight of this timepiece is the mesmerizing silver sunburst dial, which has been preserved in remarkable condition. It features faceted, polished block indices that catch the light beautifully, complemented by sharp dauphine hands. The layout is the classic "Weekdater" configuration, boasting a framed date window at three o'clock and a highly collectible Kanji (Japanese) day window at six o'clock. The text "Seikomatic Diashock 26 Jewels" is crisp and legible, enhancing the dial's clean and balanced appearance. Case and Crystal The stainless steel case measures a classic 36mm, offering a refined presence on the wrist. The watch features a distinctive fluted-style bezel which displays visible patina, pitting, and wear consistent with its age, adding a layer of authentic vintage character to the piece. The crown is recessed at the four o'clock position, a signature design element of the Seikomatic line intended to emphasize the automatic nature of the watch. The screw-down caseback proudly displays the iconic Seiko Dolphin logo, confirming its water-resistant heritage, and retains clearly visible engravings including the reference and serial numbers. Movement Powering this watch is the robust Seiko Caliber 6206B automatic movement. This 26-jewel movement features a beautiful gold-toned finish on the rotor and bridges, visible in the photos. It is a reliable workhorse from Seiko's golden age. The watch has been tested on a timegrapher, showing a rate of -35 to -41 seconds per day, which indicates a healthy movement running within acceptable vintage parameters. Strap The watch is fitted with a stylish black textured strap featuring brown contrast stitching near the lugs. The strap is in excellent condition and pairs perfectly with the silver dial, secured by a polished silver-tone buckle that complements the case. Condition This Seikomatic is in good vintage condition. The dial is the standout feature, presenting as near-mint with no significant blemishes or aging. The case maintains strong lines, though the bezel shows noticeable patina and surface wear that attests to its history. The crystal is clear and allows for excellent visibility of the dial. Overall, it is a charismatic example of 1960s design. Dimensions With a diameter of 36mm excluding the crown, the watch sits comfortably on the wrist, embodying the classic proportions of mid-century dress watches. The lug width and case profile ensure a versatile fit suitable for various wrist sizes. Remarks This Seikomatic reference 6206-8100 is a fantastic example of the "Weekdater" style, made particularly special by the Japanese Kanji day wheel. The recessed crown and the Dolphin caseback are details that collectors specifically look for. It is a sophisticated timepiece that bridges the gap between a daily wearer and a dress watch. History The Seikomatic line, introduced in the early 1960s, was Seiko's venture into high-end automatic watches and served as the direct predecessor to the legendary 62GS (Grand Seiko) automatic. These watches were designed to be the ultimate practical luxury timepieces for the Japanese market. Produced in February 1966, this specific example hails from a period when Seiko was rapidly establishing itself as a world-class manufacture, offering quality that rivaled its Swiss contemporaries. Payment and Shipping Payment must be completed within 1-3 days after purchase. The watch will be securely packaged and shipped with tracking and insurance for your peace of mind. Please review the pictures carefully before bidding. We strive to showcase the watch from multiple angles for an accurate representation. As with all vintage watches, water resistance is not guaranteed. The watch will be delivered in fully functional working condition. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: SEI-SJX-0002