Men / Women:Men Power Reserve:Approximately 40 hours Crystal:Sapphire with AR Coating Movement:ORIENT Cal. 40N5A Automatic, Hand-winding and Hacking Movt Clasp:Fold-over with Double Push Button Safety Crown:Screwed-down Water Resistance:200m, JIS Class 1 Diver Case Material:Stainless Steel Case Diameter:43.4mm without crown Case Thickness:13.6mm Dial Color:Black Bezel Material:Stainless Steel Bezel Function:120 Click, Unidirectional Calendar:Date Band Material:Stainless Steel Lug Width:22mm Warranty Type:1 Year Orient Watch USA Warranty