Product Specifications Model Number: CC4077-71Z Caliber Number: F950 Power Source: Eco-Drive (Light-Powered) Accuracy: ±5 seconds per month (when not receiving signals) Operating Time: Approximately 5 years on full charge (with power save mode activated) Signal Reception: GPS satellite signal reception Weight: 111 g Thickness: 15.4 mm Case Size: Width 44.6 mm Case Material: Super Titanium Case Surface Treatment: Duratect DLC coating (black) Band Material & Type: Super Titanium / Triple-fold push-button clasp Band Width: 22.0 mm Adjustable Band Size Range: 138–204 mm Crystal Material: Dual-curved sapphire glass (Clarity coating) Water Resistance: 10 bar water resistance (approx. 100 meters) Allergy Resistance Level: Hypoallergenic material Magnetic Resistance: Class 1 anti-magnetic (JIS standard) Design Features: Mother-of-pearl dial Luminous hands and indexes Fit adjuster Bezel: Top sapphire glass ring Functions: Charge level indicator Charge warning function Charging temperature detection function Overcharge prevention function Over-discharge detection function Power save function Light level indicator Approximately 5 years of operation on full charge (with power save mode activated) Satellite signal reception function (GPS) Location acquisition function Perpetual calendar Day and date display 1/20-second chronograph (24-hour counter) Double direct flight World time function (39 time differences) Daylight saving time function Dual time function Home/local time switching function Perfex (Class 1 anti-magnetic JIS, shock detection function, automatic hand correction function) Alarm Country of Origin: Made in Japan