Seiko Prospex SLA065 'Save the Oceans'

The Seiko Prospex SLA065 “Save the Ocean” is a premium modern dive watch that blends Seiko’s rich underwater heritage with a strong environmental message. Inspired by the brand’s historic 1968 diver design, the SLA065 features a robust stainless steel case with sharp lines, exceptional finishing, and true professional-grade dive capability. Its standout feature is the textured blue dial, designed to evoke the movement and depth of polar ocean waters, creating a dynamic visual effect that shifts beautifully under different lighting conditions. Powered by Seiko’s high-end automatic Caliber 8L35, the watch delivers reliable performance rooted in the same movement architecture used in Grand Seiko mechanical calibers.

What makes the SLA065 especially compelling is the balance it strikes between heritage design and modern execution. The Zaratsu-inspired finishing, sapphire crystal, and 200-meter water resistance elevate it far beyond a standard dive watch, while the “Save the Ocean” initiative adds purpose by supporting marine conservation awareness. Bold lume application and excellent legibility reinforce its tool-watch roots, yet the refined case finishing gives it a more elevated feel on the wrist. For collectors, the SLA065 represents everything Seiko does well: serious dive-watch credibility, thoughtful design, and exceptional value within the luxury sports watch space.

Reference: SLA065

Dated: 2025

Limited: 1300 Pieces

Bezel Aligns

Bracelet: Seiko Black Silicone and Blue Seiko Silicone

Case Size: 41.3mm x 13.1mm Thickness x 47.6mm Lug to lug

Lug Width: 20mm

Case Metal: Stainless Steel

Movement: 8L35 - Automatic

Functions: Hours, Minutes, Seconds

Box and Papers: Box and 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.