TECHNICAL DATABrand: RadoFamily: True RoundReference: R27107172Name: Rado Men’s R27107172 True Round 40mm Open Heart AutomaticCASEMaterial: CeramicGlass: Sapphire GlassDiameter: 40 X 0Case Thickness: 10,4Water Resistance: 5 ATMDIALColor: SkeletonDial Markers: No numeralsBezel: CeramicMOVEMENTType: AutomaticCalieber: R734Base Caliber: -Jewels: 25Reserve: 80 hoursBANDMaterial: CeramicColor: BlackClasp: Fold claspOTHER FUNCTIONSDisplay back,Luminescent Hands,Luminous indexes ,PVD/DLC coating ,