Seiko Celebrates 145 Years With a New Astron GPS Solar Dual-Time Chronograph

Summary

• Seiko unveils the 145th anniversary Astron GPS Solar Dual‑Time Chronograph,
• Powered by Caliber 5X63, the watches come in a titanium case, octagonal bezel and Seiko Blue dial accents
• Limited to 2,000 pieces, the watch will be released in June

Seiko marks its 145th anniversary with the release of the Astron GPS Solar Dual‑Time Chronograph, a limited‑edition model that combines cutting‑edge technology with commemorative design.

The dial reflects Seiko’s heritage through a geometric interlocking triangle motif, accented by Seiko Blue sub‑dials and a silver base that enhances legibility and depth. A quick‑change strap system allows wearers to switch between the titanium bracelet and a commemorative blue‑and‑white silicone strap, underscoring versatility and comfort. The design pays homage to Seiko’s pioneering milestones, including the Quartz Astron of 1969, while positioning this anniversary edition as a symbol of innovation and continuity.

Powered by the new Caliber 5X63, the watch offers GPS Solar functionality with dual‑time capability and a chronograph measuring up to 24 hours in 1/20‑second increments. Its titanium case is paired with a newly developed octagonal bezel, brushed on top and polished on the sides, giving the piece a refined yet modern profile.

Limited to 2,000 pieces worldwide, the Astron GPS Solar Dual‑Time Chronograph will be available starting June 2026 through Seiko Boutiques and select retail partners.