Seiko Astron GPS Solar SSH163

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A premium Seiko Astron GPS Solar chronograph, the SSH163J1 combines cutting-edge satellite timekeeping with lightweight titanium construction. Featuring a super-hard coating, Super -Clear sapphire crystal, and advanced chronograph and dual-time capabilities, it delivers exceptional precision and global functionality for modern travelers and professionals. Case & Exterior SKU SSH163 Case Material Titanium (super-hard coating) Case Size Thickness: 12.4 mmDiameter: 42.0 mmLug-to-lug: 49.5 mm Crystal Sapphire crystal Crystal Coating Super-clear coating LumiBrite LumiBrite on hands and index(es) Clasp Three-fold clasp with push button release Distance Between Lugs 14 mm Water Resistance 10 bar Weight 106.0 g Features Allergy-safe metalClasp with Smart Adjuster functionScrew case back Movement & Specifications Caliber Number 5X83 Movement Type GPS solar Precision ±15 seconds per month (without receiving a GPS signal and at 5°C–35°C) Power Reserve Approx. 6 months (when fully charged)Power save: approx. 2 years Jewels 14 Functions Overcharge prevention functionPower save functionChronograph up to 12 hours in 1/20 sec incrementsPerpetual calendar to Feb 28, 2100World time function (38 cities)Dual-time functionDay displayPower reserve indicatorTime transfer function (main dial ↔ sub-dial)GPS signal reception (time zone, auto/manual time adjustment)Satellite acquisition status displayReception result displayDST (Daylight Saving Time)In-flight mode (GPS signal prevention)Automatic hand position alignment Show more