Movement: NH35A [Automatic mechanical movement] Case: Material - 316L Stainless Steel 40 mm in diameter Lug to Lug 48 mm Thickness 13.5mm Band width 20 mm Glass: Sapphire Crystal, AR Coating Bezel: 120 Clicks Unidirectional Chronograph Bezel,Ceramic Top Ring, Black Enamel Dial, Hands: Steel Hands, Luminous Coating Luminous: BGW-9 Blue Light, Hands and Markers Crown: Screw-down Crown Screw-down Case Back, Brushed Process Strap: 316L Stainless Steel All Brushed Bracelet,Width 20 * 18 mm Clasp: Folding Clasp With Safety, Water Resistant: 20Bar=200 meters Weight: about 150g Warranty: 2 Year