60 Years Deep: Seiko marks its anniversary with new Prospex Divers

The watches combine pro-level specs with everyday versatility

For over six decades, Seiko has been making waves—literally. Since 1965, when it introduced Japan’s first-ever diver’s watch, Seiko has been pushing the boundaries of what a watch can handle under pressure. And in true dive-watch fashion, it’s celebrating its 60th anniversary not with a whisper, but with a deep, resounding splash.

Enter the new Prospex trio—three special-edition timepieces that channel Seiko’s rich underwater history while embracing cutting-edge engineering.

At the helm is the SLA081, a bold piece from the brand’s premium Marinemaster series. It’s not just a pretty face—though the dial, inspired by shinkai (the deep sea), is stunning with its blue gradient fade. Beneath the surface, it’s built like a submarine: 600m water resistance, a titanium one-piece case, and the Caliber 8L45 movement with 72 hours of power reserve. With only 600 pieces worldwide, it’s as rare as a whale shark sighting.

Then there are the SPB511 and SPB509—modern reimaginings of Seiko’s classic 1965 and 1968 diver’s watches. With 300m water resistance, new wave-pattern dials (silver and blue), and Caliber 6R movements, they blend everyday wearability with pro-level performance. The SPB509 even adds a GMT hand, perfect for travelers chasing dive sites across time zones. Bonus: the upgraded clasp adjusts on the fly, whether you’re suiting up for a dive or heading to dinner after.