Seiko - Lord Matic "Gradient Blue Sunburst" - No reserve price - 5606-7231 - Men - 1973

Now available at auction from Second Vintage Presenting a distinctive Seiko Lord Matic, reference 5606-7231, an exemplary piece that epitomizes Seiko’s spirit of innovation and bold design from the early 1970s. Featuring an eye-catching blue sunburst dial and robust stainless steel construction, this automatic classic is a seamless blend of elegance and functionality. With its sharp, angular case, applied indices, and original bracelet, this vintage Seiko delivers both a striking wrist presence and the reliability that defines the Lord Matic line. Brand: Seiko Model: Lord Matic (LM) Reference Number: 5606-7231 Serial Number: 3N2042 Movement: Seiko automatic, 25 jewels Dial: Blue sunburst with applied indices and framed day-date at 3 o’clock Case Size: 37mm (excluding the crown) Case Material: Stainless steel Production Year: 1973 Condition: The watch is running at -55s to -61s/day as per timegrapher results; overall good vintage condition with a vibrant dial, sharp case lines, and honest signs of age-related wear. Dial and Hands The dial is a stunning metallic blue sunburst, shifting beautifully as it catches the light. Applied hour markers and silver-tone hands remain crisp, with subtle patina to the luminous plots that enhance its vintage charm. The bilingual day-date display is clean and easy to read, framed finely at 3 o’clock, and the Seiko and LM applied logos are both perfectly intact. Case and Crystal The 37mm stainless steel case preserves its bold, angular lines and faceted edges, displaying light surface marks consistent with age and careful use. Lugs retain their hallmark shape, and the polished bezel adds definition to the watch’s strong character. The acrylic crystal is clear with minimal signs of wear, offering an unobstructed view of the vibrant dial. Movement Powered by the reliable Seiko automatic movement with 25 jewels, this watch is performing at -55 to -61 seconds per day per timegrapher reading. This result highlights the robustness of Seiko engineering and suggests the movement would benefit from regulation to optimize timekeeping, but offers healthy performance consistent with vintage standards. Strap Accompanied by its original Seiko stainless steel bracelet, the watch fits wrists up to 20cm. The bracelet links show light, even wear and maintain excellent structural integrity with a secure clasp, complementing the overall vintage aesthetic. Condition This Lord Matic stands out for its well-preserved dial, crisp case geometry, and overall attractive wrist presence. Signs of age include light surface scratches and gentle patina to the lume, lending character without detracting from its appeal. Dimensions Case diameter: 37mm (excluding the crown) Wrist size: Fits up to 20cm Remarks A compelling example from Seiko’s renowned Lord Matic series, reference 5606-7231 is a prime choice for collectors and vintage enthusiasts alike. Its blue dial, sharp case profile, day-date function, and original bracelet combine to create a piece that captures both the spirit and the quality of 1970s Seiko innovation. History The Seiko Lord Matic line was introduced for the discerning Japanese domestic market, representing high standards of engineering and refined design. The 5606-7231 is cherished among collectors for its robust automatic movement, timeless aesthetics, and everyday usability—a testament to Seiko’s enduring commitment to excellence in watchmaking. / Second Vintage SKU: SEI1H4MBCD000