Seiko Prospex 'Black Series' SPB255

Prospex Black Series Limited Edition. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and style. Part of a rich legacy of innovation in high-intensity timekeeping, Prospex continues to celebrate a long history of sports watch excellence with recreations and reinterpretations of landmark achievements. From the dramatic Black Series, this distinctive Limited Edition, available only a controlled production run of 5,500, reimagines Seiko’s landmark 1968 diver’s watch with updated technology and sleeker lines for versatile wear. This masterfully updated design is crafted of stainless steel with black hard coating, and includes a sapphire crystal with anti-reflective coating on the inner surface, black uni-directional rotating elapsed timing bezel, and screwdown crown and caseback, as well as a brown high-intensity “Seichu” fabric strap, made in Japan with superior flexibility, but the strength necessary for diving, plus an additional black silicone strap. With orange accents to evoke the early dawn light on the ocean, the black dial features a date calendar and LumiBrite hands and markers. Following ISO standards for scuba diving to depths of up to 200 meters, this exceptional watch is powered by a 24-jewel automatic movement, which beats at a frequency of 21,600 vibrations per hour, with a power reserve of approximately 70 hours, and offers manual winding capability. Packaged in a Limited Edition collectors’ box. 200m Water Resistant.

Reference: SPB255

Limited: 5500 Pieces

Bezel Aligns

Bracelet: Nylon Nato Strap and Black Silicone Strap

Case Size: 42mm x 12.5mm Thickness

Lug Width: 20mm

Case Metal: Stainless Steel (Hard Coating – Black)

Movement: 6R35 - Automatic

Functions: Hours, Minutes, Seconds, Date

Box and Papers: Box - no papers

Crystal: Sapphire

Bracelet size: 7.75”

Case has no wear. Straps have no wear. Dial, hands, and crystal have no wear.

Seiko's history began in 1881 when Kintaro Hattori opened a watch shop in Tokyo. In 1892, he established Seikosha, a factory for producing wall clocks. The company quickly progressed, creating Japan's first wristwatch, the Laurel, in 1913. Despite setbacks like the Great Kanto Earthquake of 1923, Seiko persevered, launching its first watch under the Seiko brand name in 1924.

The post-World War II era saw Seiko's rapid growth and innovation. They introduced Japan's first automatic wristwatch in 1956 and launched the prestigious Grand Seiko line in 1960. Seiko achieved international recognition for accuracy in 1968, winning a Geneva Observatory competition. 

The company made a name for its divers in 1965 with the introduction of their first professional dive watch, the 62MAS. This was followed by the iconic 6159-7001 in 1968, which was water-resistant to 300 meters. Seiko gained international recognition in 1975 with the release of the 6159-7010, nicknamed the "Tuna Can" due to its distinctive case shape. In 1969, they revolutionized the industry with the Astron, the world's first quartz wristwatch, ushering a new era of watchmaking that would send waves across the industry through the 70s and 80s. From its humble beginnings to becoming a global watchmaking giant, Seiko's history is characterized by resilience, technological advancement, and a commitment to precision.