Seiko Astron x GPS Solar ft. Starry Sky (Limited Edition of 1,500 Pieces) Men Formal Hexagon 100m Water Resistant Watch SSJ027J1 SSJ027 SSJ-027 SSJ-027J1 Experience cosmic elegance with the Seiko Astron Starry Sky Limited Edition, featuring a light blue star-embossed dial that captures the infinite night sky. Crafted from lightweight titanium with scratch-resistant coating, this GPS solar watch blends celestial inspiration with cutting-edge technology. A stunning tribute to the universe brilliance - exclusive and unforgettable. Caliber Number / Movement 3X62 (solar powered) Power Reserve / Accuracy Approximately 6 months when fully charged (+/-15 seconds per month without GPS signal) Crystal Sapphire crystal (super-clear coating) Luminous LumiBrite on hands and indexes Case / Band Material Titanium (super-hard coating) case with titanium band (three-fold clasp with push-button release, smart adjuster function) Water Resistance 100m / 10 bar Case Size Thickness: 12.0 mm Diameter: 41.2 mm Length: 48.6 mm Lug width: Integrated Other Specifications Seiko Astron x GPS Solar ft. Starry Sky (Limited Edition of 1,500 Pieces) Made in Japan LIMITED EDITION on the case back Serial number engraved on the case back Allergy-safe metal Screw case back Perpetual calendar (to 28 February 2100) Power reserve indicator Overcharge prevention function Power saving function (hands stop to save power when left in the dark) Automatic hand position alignment function Date display Regular timekeeping (analog display) GPS Function GPS signal reception function (time zone adjustment, automatic time adjustment, manual time adjustment) Reception result display function Satellite acquisition status display function Function to prevent the GPS signal reception (in-flight mode)