Seiko Astron x GPS Solar ft. Starry Sky (Limited Edition of 1,200 Pieces) Men Formal Hexagon 100m Water Resistant Watch SSJ021J1 SSJ021 SSJ-021 SSJ-021J1 Celebrate celestial brilliance with the Seiko Astron Starry Sky Limited Edition, inspired by Venus as the morning star. Features a deep blue gradient dial evoking dawn, gold accents, and exclusive blue LumiBrite on hands/indexes. Crafted from scratch-resistant titanium, this GPS solar watch honors visionary leaders. A true collector piece blending cosmic beauty with cutting-edge timekeeping technology. 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 1,200 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)