MOVEMENT: Asia Valjoux 7750 Working Chronograph Movement, 28800bph CASE DIAMETER: 44mm THICKNESS: 17mm DIAL COLOR: Black Dial with Stick Markers (Superlume Appled on both Hands and Needles) CASE MATERIAL:High Grade Solid Bronze Material Case-kit (Crown at 9:00 turns the inner bezel) BRACELET: Black Rubber Strap with Tang Buckle FRONT GLASS: Sapphire Crystal CASE BACK: Solid case back with Detailed Engraving with "Expedition Charles Darwin" Graphic BEZEL: Smooth Bezel CLASP TYPE: Tang Buckle DATE INDICATOR: At 3:00 (Adjusted via crown)