Offered in this auction by Second Vintage
The Seiko 5Actus line represents one of the most vibrant and creatively adventurous eras in Japanese watchmaking, capturing the bold design language of the early 1970s. Aimed at a young, style-conscious domestic market, these timepieces are celebrated today for their dynamic dials, innovative case geometries, and robust mechanical calibers. This particular example stands out with its mesmerizing green sunburst dial and a highly distinctive faceted crystal that plays brilliantly with the light. It offers collectors a quintessential slice of Seiko history, combining striking aesthetics with the enduring reliability of the revered 6106 caliber family.
Brand: Seiko
Model: 5Actus SS
Reference Number: 6106-7003
Serial Number: 1D5419
Movement: Automatic Caliber 6106C, 25 Jewels
Dial: Green sunburst dial with applied faceted indices, exceptionally clean and vibrant presentation
Case Size: 37 mm (excluding the crown)
Case Material: Stainless Steel
Production Year: 1971
Condition: Good vintage condition with well-preserved dial and honest case wear
Dial and Hands
The centerpiece of this timepiece is its captivating green sunburst dial, which remains in stunning, well-preserved condition. The dial surface is remarkably clean, showing no visible moisture marks, spotting, or degradation, allowing the radiant green finish to catch the light beautifully. It features prominently applied, heavily faceted silver-tone hour markers with central detailing, perfectly matched by the sharp, polished baton hands. The applied Seiko and 5Actus logos sit proudly beneath the twelve o'clock position, while the Suwa Seikosha factory symbol is crisply printed above the six o'clock mark. A sharply framed day and date aperture rests at the three o'clock position, completing the balanced and highly legible, yet undeniably bold, 1970s aesthetic.
Case and Crystal
The stainless steel case features a classic 1970s cushion profile, characterized by its seamless integration of lugs and a recessed crown situated discreetly at the four o'clock position. The case retains a strong structural integrity, displaying honest, age-consistent wear including light surface scratches and handling marks along the polished flanks and brushed upper surfaces, without any signs of heavy over-polishing. The watch is fitted with a highly distinctive, period-correct faceted crystal that acts as a prism, casting dynamic geometric reflections across the dial. This crystal exhibits visible surface scratches, scuffs, and minor edge wear consistent with fair vintage use, which adds authentic character to the piece while maintaining the dramatic visual effect that defines this specific reference.
Movement
Powering this timepiece is the robust Seiko automatic Caliber 6106C, a 25-jewel movement renowned for its durability and engineering efficiency. Close inspection of the movement reveals crisp factory engravings, including the caliber designation and Japan origin markings on the winding bridge. The rotor and movement plates display visible surface oxidation and age-related patina, which is a common cosmetic characteristic for a vintage workhorse caliber of this era. Running in vintage operational condition. Maintains the authentic mechanical character of the era. The timegrapher records a performance of +51 to +59 seconds per day.
Strap
The watch is secured to the wrist by its original stainless steel folded-link bracelet, a rare and highly desirable inclusion for collectors. The folding clasp is proudly stamped with the Seiko 5Actus branding, confirming its authenticity to the model line. The bracelet exhibits moderate stretch and normal surface wear typical of its age, integrating flawlessly with the cushion case to provide a comfortable and historically accurate wearing experience.
Condition
This timepiece is presented in good vintage condition, offering a highly attractive balance of aesthetic preservation and honest historical wear. The dial is exceptionally clean and vibrant, standing out as the absolute highlight of the watch. The case retains its authentic geometry with normal surface scratches expected from decades of enjoyment. The faceted crystal shows visible wear and surface marks, while the movement displays cosmetic aging but remains fully operational. Overall, it is a highly charismatic and authentic survivor from a golden era of Japanese watch design.
Dimensions
The stainless steel case measures 37 mm in diameter, excluding the recessed crown. The accompanying original bracelet accommodates a wrist size of up to 19 cm.
Remarks
The inclusion of the original signed bracelet and the preservation of the striking green dial make this a compelling acquisition for enthusiasts of vintage Japanese horology. The faceted crystal remains a defining characteristic that elevates the visual presence of the watch on the wrist, making it a true conversation piece.
History
Introduced in the late 1960s and flourishing throughout the 1970s, the Seiko 5Actus collection was designed to appeal to a dynamic, forward-thinking generation in Japan. The numerical designation denoted Seiko's five key attributes, which included an automatic movement, day-date display, water resistance, a recessed crown, and a durable case. The Actus sub-brand pushed the boundaries of conventional design, introducing vibrant colors, unusual case shapes, and dramatic faceted crystals. These watches perfectly encapsulate the optimism and bold stylistic experimentation of the era, remaining highly collectible artifacts of Seiko's rich manufacturing heritage.
/ Second Vintage
SKU: SEI-SSS-0007



























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Seiko - 5Actus SS - No reserve price - 6106-7003 - Men - 1971
Seiko • 1971
Verkauft fĂĽr
€124
Verkauft am 15. März 2026
11 bids62 watching
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