Model: NF8080 Movement: quartz chronograph movement. Gender: male Mirror: hardened mineral glass Case material: zinc alloy Strap material: fumed silica gel Watch buckle type: pin buckle Case shape: round Product specifications: Dial diameter: 41mm Thickness of case: 12mm Total length: 250mm Bandwidth: 26mm Product weight: 73g Function: 30m waterproof, shockproof, stopwatch and date display.