MOVEMENT:Caliber F6722 Automatic, Hand-winding, Hacking Movement POWER RESERVE:Approximately 40 hours FEATURES:Date, Luminous Markers CRYSTAL:Sapphire DIAL COLOR:Blue CASE MATERIAL:Stainless Steel CASE DIAMETER:43.4 mm without crown LUG-TO-LUG LENGTH:51 mm CASE THICKNESS:12.8 mm WATER RESISTANCE:200 M CROWN:Screwed-down BEZEL MATERIAL:Stainless Steel BEZEL FUNCTION:120-Click Uni-Directional BAND MATERIAL:Stainless Steel CLASP:Double Push Button with Safety LUG WIDTH:22 mm