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.