Features:Stainless Steel CaseStainless Steel BraceletAutomatic MovementCaliber: Seiko NH36Sapphire CrystalBlack Dial With Logo "RATIO"Analog DisplayHelium-Safe40 Hours Power ReserveLuminous Hands And MarkersDay And Date DisplayScrew Down CrownEngraved Caseback (With Image Of A Free Diver)Deployment Clasp1000M Water ResistanceApproximate Case Diameter: 46mmApproximate Case Thickness: 15mm