Seiko LM Special (Lord Matic) 5206-6100 (1973)

Presented for auction by Second Vintage A remarkable opportunity to acquire a classic from Seiko’s golden era: the LM (Lord Matic) 5206-6100. This vintage Seiko is defined by its distinctive green sunburst dial and crisp case contours, capturing the innovative spirit of Japanese watchmaking in the early 1970s. With its automatic 23-jewel movement and paired with a period-correct stainless steel bracelet, this piece combines design excellence, mechanical integrity, and everyday wearability for discerning collectors. Brand: Seiko Model: LM Special (Lord Matic) Reference Number: 5206-6100 Serial Number: 321844 Movement: Seiko Caliber 5206 automatic, 23 jewels Dial: Green sunburst, applied silver indices with gold accents, day-date at 3 o’clock Case Size: 35 mm (excluding the crown) Case Material: Stainless steel Production Year: 1973 Condition: Excellent vintage condition with minor signs of wear; running at -18 to -24 seconds per day on the timegrapher, indicating healthy performance for its age. Dial and Hands The dial features a striking green sunburst finish that shifts beautifully in the light and is accented by applied silver markers with gold highlights at the quarters. The Seiko and LM logos are clear and sharply defined. Both the original hands and luminous plots exhibit an attractive, even patina, while the day-date aperture is crisp and cleanly framed. No distracting marks or blemishes detract from the overall presentation, preserving the watch’s vivid vintage character. Case and Crystal The 35 mm stainless steel case retains strong edges and the original brushed and polished surfaces, showcasing its distinct 1970s Seiko design. The lugs remain full and well-defined, free from over-polishing. The acrylic crystal is clear and in excellent condition, with only minimal wear visible under close inspection. There are no deep scratches or damage, reflecting careful ownership throughout its life. Movement Inside beats the Seiko Caliber 5206, a robust automatic movement with quickset day and date functionality. The watch is running at -18 to -24 seconds per day on the timegrapher, underscoring reliable performance for a vintage timepiece. The mechanism winds smoothly and all functions perform as intended. Strap The watch is fitted on a period-correct stainless steel bracelet, which complements the case and dial with a refined, cohesive look. The bracelet remains tight with minimal stretch, and the folding clasp fastens securely. Suitable for wrists up to approximately 17 cm. Condition This Seiko LM 5206-6100 is in excellent overall condition, exhibiting crisp case lines, a vibrant dial, and an extremely well-preserved bracelet. Light hairlines and minor signs of wear are present, consistent with age but free of any major blemishes. The movement operates within vintage tolerances, as supported by the provided timegrapher results. Dimensions Case diameter: 35 mm (excluding crown) Fits wrists up to 17 cm Remarks A standout from Seiko’s celebrated LM series, this reference combines rarity, originality, and collectability. With its uncommon green dial, strong case presence, and healthy mechanical performance, this watch presents an exceptional opportunity for both seasoned collectors and those seeking a distinctive vintage addition. History Introduced as a symbol of Seiko's technical innovation and refined aesthetics, the Lord Matic line epitomized the brand’s dedication to precise, everyday automatics during the 1970s. The 5206-6100 stands as a testament to Seiko’s commitment to quality and remains highly prized among collectors for its unique dial, robust engineering, and classic appeal. / Second Vintage SKU: SEI8F6MSJ0000