Stainless steel case with a stainless steel bracelet. Fixed stainless steel bezel. Black guilloche dial with luminous hands and luminous stick hour markers. Minute markers. tachymeter around the outer rim. Luminiscent hands and markers. Two - ^0 seconds and 30 minutes. Automatic movement. Scratch resistant anti-reflective sapphire crystal. Screw in crown. Stainless steel case back. Case diameter: 42.5 mm. Case thickness: 13.5 mm. Deployment clasp. Water resistant at 120 meters/ 440 feet. Functions: hours, minutes, small seconds (with stop function), chronograph. Additional Info: integrated shock-absorbing system; 44-hour power reserve. IWC Ingenieur Chronograph Steel Mens Watch IW372501.