Features:Stainless Steel CaseStainless Steel BraceletEco-Drive Technology (Recharged By Any Light Source, No Need To Change Battery)Perpetual CalendarChronograph FunctionSapphire CrystalBlue DialDate WindowLuminous Hands and Hour MarkersAutomatic Time in 26 World CitiesRadio Controlled Accuracy in 5 ZonesAtomic Time KeepingFold Over Clasp With Push ButtonPower Reserve Indicator200 Meter Water ResistantCase Diameter 43mmCase Thickness 12mmÂ