Presented for auction by Second Vintage This classic mid-century timepiece represents a compelling era of Japanese watchmaking, combining elegant dress watch proportions with practical everyday complications. With its distinctive layout and robust mechanical foundation, it offers a fascinating glimpse into the evolution of automatic watches during the 1960s. Brand: Seiko Model: Seikomatic Reference Number: 6206-8100 Serial Number: 6646945 Movement: Automatic Caliber 6206B Dial: Silver sunburst dial with applied indices, exhibiting visible spotting, discoloration, and heavy patina concentrated around the outer minute track Case Size: 36 mm (excluding the crown) Case Material: Stainless Steel Production Year: 1960s Condition: Good vintage condition with honest case wear and distinct dial aging Dial and Hands The silver sunburst dial features a sophisticated layout with applied faceted steel indices enhanced by central black accents. The time is indicated by sharp, polished dauphine hands that complement the dial furniture. A notable design element is the day of the week display positioned at 6 o'clock with red text for Sunday, balanced by a framed date window at the traditional 3 o'clock position. The dial exhibits significant and clearly visible age-related wear, including noticeable spotting, moisture marks, and discoloration concentrated heavily along the outer minute track, particularly evident between the 1 and 5 o'clock positions. While the central sunburst finish and printed typography remain legible, the dial shows undeniable vintage patina and localized surface degradation consistent with its age. Case and Crystal The 36mm stainless steel case presents clean, sweeping lines characteristic of 1960s Seiko design, featuring a discreet recessed crown located at the 4 o'clock position for a streamlined profile. The case displays honest signs of regular use, with moderate surface scratches, handling marks, and a slight softening of the lug chamfers indicative of previous wear. The screw-down stainless steel caseback is well-preserved, showcasing a distinct etched dolphin motif alongside the clearly legible factory reference and serial numbers. The watch is fitted with a domed acrylic crystal that provides a warm vintage distortion to the dial edge, showing minor surface wear consistent with the overall condition of the timepiece. Movement Powering this Seikomatic is the in-house Seiko caliber 6206B automatic movement, featuring 26 jewels and the brand's Diashock anti-shock system. The movement presents beautifully with a rich gold-toned finish applied to the rotor and bridges, contrasting cleanly with the steel components. The caliber markings and jewel counts are clearly stamped on the winding rotor. Running in vintage operational condition. Maintains the authentic mechanical character of the era, with timegrapher results indicating a performance of -55-60s/day. Strap The watch is paired with a handsome brown textured leather strap featuring contrasting cream-colored edge stitching, secured by a standard stainless steel pin buckle. The strap complements the vintage warmth of the dial and provides a comfortable fit for daily wear. Condition This timepiece is presented in good vintage condition. The stainless steel case remains structurally sound with normal, honest wear patterns and light surface marks throughout. The dial displays heavy, highly visible patina, spotting, and edge discoloration that reflects its decades of existence. The mechanical movement is fully operational and running. Dimensions Case Size: 36 mm (excluding the crown) Remarks This Seikomatic is a quintessential example of mid-century Japanese design, notable for its balanced day-date configuration and the charmingly integrated 4 o'clock crown. The heavy dial patina provides a distinctly aged aesthetic that speaks directly to the watch's long history of use. History Introduced in the early 1960s, the Seikomatic line was conceived to showcase Seiko's rapidly advancing automatic winding technology in a refined, everyday package. These watches were designed for the modern professional, offering the convenience of self-winding mechanisms alongside practical calendar complications. The inclusion of features like the Diashock system and recessed crowns highlighted Seiko's commitment to durability and sleek, functional aesthetics, paving the way for the brand's future dominance in the automatic watch market. 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). 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. 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-SMJ-0014