featureUnidirectional rotating bezel Chronograph Small seconds date Master Chronometer Certified Small Seconds Speedometer Time zone function Transparent case back ?? caseTotal product weight (approx.):????185 gBetween lugs:????21 mmThickness:????14.9 mmCase:????Stainless steelCase diameter:????44.25 mmWater resistance:????5 bar (50 m/167 ft)??Dial and CrystalDial color:????GreyMirror:????Arched wear-resistant sapphire crystal, double-sided anti-reflective treatment??braceletMaterial:????SteelClasp Type:????Folding Clasp, Comfort SettingReturns and exchanges within 30 daysAny unsatisfactory product can be returned within 30 days Money Back GuaranteeFull refund within one week after receiving the return 3-year warrantyCovers any possible defects in materials and workmanship free shippingFree Shipping on all US/Canada/UK/AU orders over $300