Seiko Astron x GPS Solar ft. Nexter Series aka Starry Sky (Limited Edition of 1,200 Pieces) Men Formal Round 100m Water Resistant Watch SSH145J1 SSH145 SSH-145 SSH-145J1 Celebrate celestial brilliance with the Seiko Astron Starry Sky Limited Edition, featuring a deep blue gradient dial inspired by Venus as the morning star. Crafted from lightweight titanium with scratch-resistant coating, this exclusive timepiece boasts gold accents and unique blue LumiBrite hands/indexes. A tribute to visionary leaders, powered by cutting-edge GPS solar technology. Caliber Number / Movement 5X53 (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: 12.2 mm Diameter: 42.7 mm Length: 48.0 mm Lug width: Integrated Other Specifications Seiko Astron x GPS Solar ft. Pure Trend (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 DST (daylight saving time) World time function (39 time zones) Time transfer function (switching between main and sub-dial) 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 Day, date, 24-hour and dual-time 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)