Calibre No.F900 Maximum run time from full charge (Normal Use Condition)Approximately 1.5 years MovementEco-Drive Signal ReceptionGPS Satellite Wave StrapTitanium Water ResistantWater Resistant to 10 bar Weight110g Thickness13.1mm Case Size 45.4mm CaseTitanium Surface ProcessingDuratect TIC GlassSapphire Glass (Non Reflection Coating) Warranty3 years warranty Specification Date and Day Display Alarm Chronograph Dual Time Duratect TIC Super TitaniumTM Eco-Drive (recharged by any light source, no need for regular battery replacement) Satellite Timekeeping System (Reception Area: Worldwide) Non Reception: ±5 Sec / Month Light Level Indicator Insufficient Charge Warning Function Made In Japan Overcharge Prevention Function Perpetual Calendar Power Reserve Level Indicator World Time in 40 Time Zones Summer Time (ON/OFF) UTC (Universal Time Coordinated) GPS (Location Information Obtainment Function)