Seiko LM 5606-7310 (1975)

Presented for auction by Second Vintage This Seiko Lord Matic is a spectacular example of 1970s Japanese watch design, featuring a mesmerizing gradient green sunburst dial paired with a highly collectible faceted crystal. The way the light plays across the cut glass and the emerald tones of the dial creates a dynamic visual effect that is unmatched by modern equivalents. Preserved in excellent condition, this piece represents the high-quality engineering of the Lord Matic line, complete with its original signed bracelet and Kanji day wheel, making it a true prize for vintage Seiko collectors. Brand: Seiko Model: Lord Matic Reference Number: 5606-7310 Serial Number: 526470 Movement: Automatic Caliber 5606A Dial: Gradient Green Sunburst Case Size: 36 mm Case Material: Stainless Steel Production Year: February 1975 Condition: Excellent vintage condition, featuring a pristine dial and sharp faceted crystal, running within vintage tolerances with timegrapher results between -17 and -19 seconds per day. Dial and Hands The dial is the standout feature of this timepiece, presenting a vibrant green sunburst finish that transitions to a deeper, darker tone towards the edges. The surface is flawless, free from staining or spotting. Applied gold hour markers and matching gold baton hands provide a luxurious contrast against the green background. The gold "LM" logo at 6 o'clock is crisp and applied. A framed day-date window is positioned at 3 o'clock, featuring a desirable Kanji and English day wheel. Case and Crystal The stainless steel case measures 36 mm and retains its sharp, original factory lines with brushed upper surfaces and polished sides. The watch is fitted with its original faceted "cut glass" crystal, which is in remarkable condition with distinct geometric planes that refract light beautifully. The crown is original and sits flush against the case. There are only minor signs of handling consistent with a well-preserved vintage watch of this era. Movement Powered by the robust Seiko Caliber 5606A, this 23-jewel automatic movement is a high-grade engine known for its reliability. The movement is clean and performing well, with timegrapher readings showing a rate of -17 to -19 seconds per day, indicating healthy mechanical function for a vintage piece. Strap The watch comes fitted on its original stainless steel link bracelet, complete with the specific "LM" signed folding clasp. The bracelet is comfortable and matches the case aesthetic perfectly, accommodating a wrist size of approximately 17.5 cm. Condition This timepiece is in excellent vintage condition. The dial is exceptionally well-preserved, and the faceted crystal is clear and attractive. The case shows honest, light wear but no significant dings or deep scratches. The movement is running reliably within acceptable vintage parameters. Dimensions The case measures 36 mm in diameter excluding the crown, offering a classic and wearable size suitable for most wrists. Remarks The combination of a gradient green dial and a faceted crystal is one of the most sought-after configurations in the vintage Seiko market. The "Disco Volante" era styling combined with the high-beat lineage of the Lord Matic series makes this a visually stunning and mechanically respectable wristwatch. History Introduced in 1968, the Seiko Lord Matic (LM) line was positioned just below the King Seiko and Grand Seiko in the brand's hierarchy, offering high-end automatic movements in sophisticated case designs. The 5606 caliber was a marvel of its time, offering hacking and hand-winding capabilities in a thin profile, and served as the base for many higher-tier Seiko chronometers. This specific example from 1975 perfectly captures the adventurous design language of the mid-70s. / Second Vintage SKU: SEI-SLJ-0078