Seiko Astron Limited Edition GPS Solar – SSH183

The Seiko Astron GPS Solar SSH183 is a visionary timepiece that embodies the future of watchmaking with dynamic design and cutting-edge technology. This 2025 limited-edition model features a 43.4mm titanium case with a dual-layered ceramic and polygonal-edged bezel, paired with a titanium bracelet accented with black ceramic and vibrant neon orange details for a sporty, modern aesthetic. The dial, inspired by the high-speed journey of light, showcases a unique horizontal pattern with intermittent lines, capturing the sensation of motion and energy.

Powered by Seiko’s GPS solar Caliber 5X83, the SSH183 offers remarkable precision of ±15 seconds per month without GPS reception and up to six months of operation on a full charge, extending to approximately two years in power-save mode. Its chronograph measures up to 12 hours in 1/20-second increments, while a perpetual calendar, world-time function across 38 cities, dual-time display, power reserve indicator, and GPS time zone adjustment make it exceptionally functional for global travelers. Additional features include automatic hand alignment, DST adjustment, and in-flight GPS signal prevention.

The dual-curved sapphire crystal with super-clear coating ensures unmatched readability, complemented by LumiBrite on hands and indexes. A three-fold clasp with push-button release and Smart Adjuster allows easy fine-tuning of the bracelet, while 100 meters of water resistance and 4,800 A/m magnetic resistance guarantee durability. Each limited-edition SSH183 is engraved with its unique serial number on the case back, highlighting Seiko’s commitment to precision, innovation, and contemporary design.