The Seiko Prospex Speedtimer Solar GPS SSH165J1 combines classic design with modern technology, featuring a comfortable 42mm case and water resistance up to 100m, protected by a durable sapphire crystal. Powered by the advanced Seiko Cal. 5X83 Solar GPS movement, it automatically adjusts to local time zones via GPS and offers up to 6 months of operation on a full charge. Additional features include a perpetual calendar until 2100, a power reserve indicator, world time across 39 time zones, dual time zones, automatic hand alignment, and a power save mode. This model also introduces a chronograph function, making it a versatile choice for any watch enthusiast. Movement Caliber Number 5X83 Movement Type GPS solar Precision ±15 seconds per month (without receiving a GPS signal and at temperatures between 5°C and 35°C ) Power reserve Operating for approx. 6 months (when fully charged), power save: approx. 2 years Jewels 14 Functions Overcharge prevention function Power save function Chronograph up to 12 hours in 1/20 second increments Perpetual calendar to the february 28, 2100 World time function (38 cities) Dual-time function Day display Power reserve indicator Time transfer function (Switching between the main-dial and sub-dial) GPS signal reception function (Time zone adjustment, automatic time adjustment, manual time adjustment) Satellite acquisition status display function Reception result display function DST (Daylight Saving Time) Function to prevent the GPS signal reception (in-flight mode) Automatic hand position alignment function Case/Band Case Material Titanium (super-hard coating) Case Size Thickness:12.9mmDiameter:42.0mmLug-to-lug:49.6mm Crystal Dual-curved 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 20mm Other Details Water Resistance 10 bar Magnetic Resistance 4,800 A/m Weight 106.0g Features Clasp with Smart Adjuster function Screw case back
