Seiko - LM "Deep Blue Sunburst" 青嵐 (Ao Arashi) – Blue Storm - No reserve price - 5606-5140 - Men - 1973

Available now on auction by Second Vintage This Seiko Lord Matic from the early 1970s represents one of the most vibrant periods in Japanese watchmaking design. Featuring a striking deep blue sunburst dial and a distinctive cushion-style case, this timepiece captures the essence of 1970s funk and elegance. The Lord Matic line was positioned as a high-grade automatic series, incorporating sophisticated movements and superior finishing, making this specific reference a desirable choice for collectors who appreciate bold vintage aesthetics and mechanical reliability. Brand: Seiko Model: Lord Matic Reference Number: 5606-5140 Serial Number: 338018 Movement: Automatic Caliber 5606 Dial: Deep blue sunburst Case Size: 35 mm Case Material: Stainless Steel Production Year: 1973 Condition: Good vintage condition. The watch shows honest signs of age and wear to the case and crystal, while the movement is running within vintage tolerances with a reading of -19s to -22s/day. Dial and Hands The centerpiece of this watch is the mesmerizing deep blue sunburst dial which remains in very attractive condition. It features applied silver baton indices and the applied "SEIKO" and "LM" logos which stand out crisply against the dark background. The dial is signed with the Suwa Seikosha factory symbol above the six o'clock position. A framed day-date window is positioned at three o'clock displaying both English and Kanji characters. The silver baton hands are original to the watch and show normal aging consistent with the rest of the dial components. Case and Crystal The stainless steel case features a unique rounded cushion shape that sits comfortably on the wrist and offers a robust vintage profile. The case is in honest vintage condition showing visible scratches and dings throughout the polished surfaces and bezel area, preserving its original unpolished geometry. The crown is recessed slightly into the case side at the three o'clock position. The crystal shows signs of wear with visible scratches on the surface. Movement Powering this timepiece is the highly regarded Seiko Caliber 5606 automatic movement. This 25-jewel Japanese movement is known for its durability and was a staple of Seiko's mid-range luxury offerings during the era. The movement is clean and presents well. A timegrapher reading indicates a rate of -19s to -22s per day which indicates reliable vintage performance for a movement of this era. Strap The watch is fitted with a black leather strap featuring a reptile grain pattern and contrasting white stitching. The strap is in good condition and complements the sportier aesthetic of the stainless steel case and blue dial combination. Condition This timepiece is in good vintage condition. While the case and crystal show clear evidence of use and history through surface scratches and marks, the dial remains the visual highlight with its rich color and preserved details. It is an honest example that has been worn and enjoyed, retaining its structural integrity and mechanical function. Dimensions The case measures 35 mm in diameter excluding the crown, offering a classic vintage fit that works well on a variety of wrist sizes. Remarks The reference 5606-5140 is sought after for its unconventional case shape which bridges the gap between the conservative designs of the 1960s and the bolder styles of the 1970s. The combination of the deep blue dial with the Kanji day wheel makes this a particularly appealing example for enthusiasts of JDM (Japanese Domestic Market) horology. History Introduced in 1968, the Seiko Lord Matic (LM) line was positioned just below the King Seiko and Grand Seiko lines, offering high-quality automatic movements in sophisticated case designs. The 5606 caliber became one of Seiko's most ubiquitous and reliable high-beat base movements of the 1970s. This specific example dates to March of 1973, placing it right in the golden era of Seiko's mechanical dominance before the quartz revolution fully took hold. / Second Vintage SKU: SEIY6YVTQ0000