Seiko Releases Three Limited Prospex Models Honoring 60 Years of Diver’s Watch Legacy

A Legacy Born from the Depths
The Pioneer Collection: Three Masterpieces for 2025
To commemorate this remarkable milestone, Seiko unveils three extraordinary timepieces that bridge six decades of innovation with tomorrow’s technology:
The Marinemaster Professional Edition
Leading the anniversary collection is the flagship Marinemaster, powered by Seiko’s revolutionary new Caliber 8L45. This 28,800 bph movement delivers an impressive 72-hour power reserve while maintaining chronometer-grade precision. The one-piece titanium case construction achieves professional-grade 600-meter water resistance, making it suitable for the most demanding saturation diving operations. Limited to just 600 pieces worldwide, this timepiece represents the pinnacle of Seiko’s diving watch expertise.


The Heritage 62MAS Tribute
Honoring the original 1965 design that started it all, this faithful recreation captures the essence of the legendary 62MAS while incorporating modern reliability. The updated 6R movement ensures contemporary performance standards, while the classic case proportions and dial layout pay homage to the watch that proved Japanese diving instruments could compete on the world stage.
The Professional Evolution
Revolutionary Technologies
Supporting Ocean Conservation


A Testament to Endurance
Availability and Legacy
The Marinemaster Professional Edition will be available at select Seiko boutiques from July 2025, while the Heritage models launch in June 2025. Each timepiece represents a limited opportunity to own a piece of diving history while contributing to the next chapter of underwater exploration.
This anniversary collection stands as proof that innovation never rests beneath the waves, and that the spirit of that first professional diver’s request continues to drive Seiko’s relentless pursuit of underwater excellence.


Seiko Prospex Marinemaster Professional
60th Anniversary Limited Edition
Seiko Diver's Watch
SLA081
1968 Heritage Diver’s GMT Watch
60th Anniversary Limited Edition
Seiko Diver's Watch
SLA081

