Seiko Celebrates 60 Years of Dive Watches with Three Stunning New Releases
Introducing the Seiko Prospex Marinemaster SLA081, SPB509 GMT, and SPB511
Seiko has spent the past six decades defining the dive watch category, and to mark this milestone, the brand has unveiled a trio of limited-edition Prospex models that pay tribute to its legendary heritage. Leading the charge is the Seiko Prospex Marinemaster SLA081, a titanium professional dive watch inspired by the 1968 Diver. Accompanying it are two stunning variations—the SPB509 GMT, a travel-ready companion, and the SPB511, a modern take on the classic 62MAS.
The Prospex Marinemaster SLA081: A True Professional Diver
The standout of this anniversary collection, the SLA081, is an ultra-capable saturation dive watch that blends heritage with cutting-edge materials.
45.4mm monobloc titanium case – Lightweight yet incredibly strong
Helium-resistant construction – No escape valve required
Deep blue gradient wave dial – Inspired by the ocean’s depths
New five-row titanium bracelet – Redesigned for comfort and durability
Upgraded Caliber 8L45 – 72-hour power reserve with improved accuracy
Limited to 600 pieces – Available July 2025 (€4,900)
The SLA081 embodies Seiko’s professional dive watch DNA, offering an impressive mix of performance, engineering, and heritage.
The Seiko Prospex SPB509 GMT: A Versatile Ocean Explorer
For those who need a dive watch with dual time zone functionality, the SPB509 GMT brings practicality and style.
42mm stainless steel case – 300m water resistance for true diving capability
Dark blue wave dial with gold-accented GMT hand – A striking contrast
Caller-style GMT function – Powered by the 6R54 automatic movement
New micro-adjustable clasp – A long-awaited upgrade for comfort
Limited to 6,000 pieces – Available June 2025 (€1,900)
With its rich ocean-inspired aesthetic and travel-friendly GMT complication, the SPB509 GMT is a well-rounded addition to Seiko’s dive watch lineup.
The Seiko Prospex SPB511: A Refined 62MAS Tribute
Taking inspiration from Seiko’s first-ever dive watch, the SPB511 refines the timeless 62MAS design with modern upgrades.
40mm stainless steel case – A perfect balance of vintage proportions and modern durability
Light silver wave dial with grey bezel – A fresh take on the 62MAS aesthetic
Upgraded clasp for sleek wearability – Complements the clean case profile
Reliable 6R55 automatic movement – 72-hour power reserve
Limited to 6,000 pieces – Available June 2025 (€1,500)
This is the first light-colored dial variant in the modern 62MAS-based collection, proving that Seiko’s original dive watch design remains timeless.
A Legacy of Innovation
From the pioneering 1965 62MAS to today’s cutting-edge Prospex divers, Seiko has continued to push the boundaries of dive watch technology. This 60th-anniversary trio is a celebration of the past, present, and future of Seiko’s dedication to the deep.
Which of these Seiko Prospex models would you add to your collection? Reply and let us know.