Caliber No.:F990 Maximum run time from full charge:Approximately 5 years (Normal Use Condition) Movement:Eco-Drive Signal Reception:Without Radio Reception Function Strap:Super Titanium™ Water Resistant:Water Resistant to 200m Case Size:47mm Case:Super Titanium™ + DLC Glass:Sapphire Glass with non-reflective coating Specification ★1,989pcs (worldwide) 1/1 sec chronograph up to 24 hrs 39 time zones (27 cities world time) Alarm Aviation slide rule rotation bezel Daylight saving function Dual time display Low charge indicator Perpetual Calendar Power Reserve Indicator Push button buckle with safety clasp Satellite Time Keeping System (GPS) UTC display