Seiko - Lord Matic "Gradient Green Sunburst" 深界 – Shinkai – Deep Realm - No reserve price - 5606-7360 - Men - 1975

Now available at auction from Second Vintage This is a remarkable example of 1970s Japanese design creativity, featuring one of the most collectible configurations of the Seiko Lord Matic series. With its striking emerald green dial and original faceted cut-glass crystal, this timepiece plays with light in a way that is simply mesmerizing. The Lord Matic line was the mid-tier luxury offering that sat just below King Seiko, and this specific reference 5606-7360 captures the funky yet elegant aesthetic of the era perfectly. It is a piece that demands attention on the wrist. Brand: Seiko Model: Lord Matic Reference Number: 5606-7360 Serial Number: 593354 Movement: Automatic Caliber 5606 Dial: Emerald Green Case Size: 36 mm (excluding the crown) Case Material: Stainless Steel Production Year: 1975 Condition: Excellent vintage condition. The watch presents beautifully with a pristine dial and a sharp, well-preserved case showing only minor signs of use, running within vintage tolerances. Dial and Hands The dial is the centerpiece of this watch, finished in a deep, vibrant emerald green that shifts in tone depending on the lighting. It is impeccably preserved with no visible staining or aging. The applied silver hour markers are block-style and highly polished, complementing the slender sword-style hands. A framed day and date window is positioned at 3 o'clock. The "LM" logo and "25 JEWELS" branding at 6 o'clock are crisp and intact. The visual impact is significantly amplified by the original multi-faceted crystal, which creates a geometric, prismatic effect over the green surface. Case and Crystal The stainless steel case features a distinct 1970s geometry with a mix of brushed surfaces on the top lugs and polished sides. The case lines remain sharp and well-defined, indicating the watch has been treated with care over the decades. The defining feature is the original faceted mineral glass crystal, which is in good condition, retaining its sharp angles and allowing the dial underneath to shine through with its intended optical effect. Movement Powering the watch is the high-grade Seiko Caliber 5606 automatic movement. This 25-jewel movement was a staple of Seiko's mid-to-high-range watches of the era, offering vintage performance. The movement appears clean and well-maintained in the photographs, featuring the signed rotor. Strap The watch comes fitted on its original Seiko Lord Matic stainless steel bracelet. The bracelet is comfortable and features the correct clasp embossed with the "LM" logo. It is sized to fit a wrist of approximately 17.5 cm. Condition This timepiece is in excellent vintage condition. The dial is flawless, which is rare for colored dials of this age. The case shows only light surface scratches consistent with careful handling. The faceted crystal is clear and preserves the unique character of the watch. The movement is clean and the watch is running within vintage tolerances. Dimensions The case measures 36 mm in diameter excluding the crown, a classic size that wears slightly larger due to the bold case shape and faceted crystal height. Remarks Finding a Lord Matic with a green dial and the original faceted crystal in this condition is becoming increasingly difficult. The combination of the "disco" style crystal and the vivid green tone makes this a quintessential piece for collectors of 1970s horology. It is a wearable conversation piece that bridges the gap between dress watch and retro statement accessory. History The Seiko Lord Matic (LM) line was introduced in 1968 and served as the company's core luxury automatic offering, positioned directly beneath the Grand Seiko and King Seiko lines. It featured high-quality movements and, by the mid-1970s, became the canvas for Seiko's most adventurous designs, incorporating vibrant colors and unique case shapes that defined the "Space Age" aesthetic of the decade. This specific example from 1975 represents the peak of that expressive era. / Second Vintage SKU: SEI-SLJ-0139