Seiko LM 5606-7310 (1974)

Available now on auction by Second Vintage This striking Seiko Lord Matic represents the adventurous spirit of 1970s Japanese watch design. Combining a vibrant gradient dial with a sophisticated faceted crystal, this timepiece offers a unique visual experience that changes with the light. It sits within the highly respected Lord Matic line, which served as the bridge between Seiko's entry-level models and the high-end King Seiko range, making it a desirable piece for collectors of vintage horology. Brand: Seiko Model: Lord Matic Reference Number: 5606-7310 Serial Number: 404731 Movement: Automatic Caliber 5606 Dial: Gradient Green Sunburst Case Size: 37 mm (excluding the crown) Case Material: Stainless Steel Production Year: 1974 Condition: Excellent vintage condition. The watch presents exceptionally well with sharp case lines, a pristine dial, and a clear faceted crystal, indicating a very well-preserved history. Dial and Hands The dial features a mesmerizing gradient green sunburst finish that transitions from a lighter emerald tone in the center to a deep forest green at the edges. This dynamic color is complemented by gold-tone applied baton indices and matching gold-tone hands. A framed day and date window sits at the three o'clock position. The dial text is crisp, featuring the applied Seiko logo and the distinct LM signature, all of which remain in flawless condition. Case and Crystal The stainless steel case retains its original sharp geometry and brushed finishes, typical of Seiko's design grammar from the mid-1970s. A defining feature of this reference is the original faceted cut-glass crystal, which remains in remarkable condition. This specialized crystal creates unique light distortions and reflections across the dial, adding significant depth and character to the watch. The crown is discreetly integrated into the case profile. Movement Powering the watch is the reliable Seiko Caliber 5606 automatic movement. This 23-jewel movement was a high-grade workhorse of its era. The movement appears clean and free of corrosion, running within vintage tolerances and offering reliable vintage performance. Strap The watch is fitted with its original stainless steel multi-link bracelet, which features the correct Seiko LM signed folding clasp. The bracelet design is intricate and comfortable, preserving the authentic look of the watch. It is currently sized to fit a wrist of approximately 17.5 cm. Condition This timepiece is in excellent vintage condition. The case shows only very minor handling marks and retains its original definition. The faceted crystal is clear and free of significant chips or scratches that would detract from visibility. The dial is pristine with no signs of aging or moisture damage. The movement is healthy and the quickset functions operate as intended. Dimensions The case measures 37 mm in diameter excluding the crown. The faceted crystal and the robust case shape give the watch a prominent presence on the wrist that feels slightly larger than its dimensions suggest. Remarks This reference 5606-7310 is a quintessential example of the "funky" 70s era where Seiko experimented with bold colors and glass shapes. The combination of the gold accents against the green gradient dial creates a luxurious yet playful aesthetic. It is a highly collectible variation of the Lord Matic series that stands out for its condition and original configuration. History The Seiko Lord Matic (LM) line was introduced in 1968 and remained a staple of Seiko's mid-range luxury offerings throughout the 1970s. Positioned above the Seiko 5 but below the King Seiko, the LM series brought high-quality hacking and hand-winding automatic movements to a broader market. These watches are celebrated today for their diversity in design and the durability of the 5600 series movements, representing a golden era of mechanical innovation at the Suwa Seikosha factory. / Second Vintage SKU: SEI-SLJ-0069