featureUnidirectional rotating bezelSmall secondsdateHelium escape valveMaster Chronometer CertifiedScrew-down crownTime zone functionTransparent case backUnidirectional rotating bezel??caseTotal product weight (approx.):????118 gBetween lugs:????21 mmThickness:????16.1 mmCase:????Stainless steelCase diameter:????43.5 mmWater resistance:????60 bar (600 m/2000 ft)??Dial and CrystalDial color:????whiteMirror:????Arched wear-resistant sapphire crystal, double-sided anti-reflective treatment??tapeStrap Type:????NATO StrapStrap color:????MulticolorStrap surface:????Polyamide fabricBuckle type:????pin buckleBuckle material:????stainless steel