Caliber Number 5X53 GPS solar Movement ±15 seconds per month (without receiving a GPS signal and at temperatures between 5°C and 35°C ) Operating for approx. 6 months (when fully charged), power save: approx. 2 years Stainless steel Case (super hard coating) with ceramic bezel Dual-curved sapphire Crystal Super-clear Crystal Coating Lumibrite on hands and indexs Three-fold clasp with push button release Water Resistance 10 bar Case Thickness: 13.3mm Case Diameter: 42.7mm Case Length: 49.9mm Automatic hand position alignment function Day display DST (Daylight Saving Time) Dual-time function Function to prevent the gps signal reception function from working (in-flight mode) Overcharge prevention function Perpetual calendar to the february 28, 2100 Power reserve display Power save function Reception result display function Satellite acquisition status display function World time function (39 time zones) Packaging: New in box with manual