This Omega is 41.5 mm stainless steel case, screw-in crown, blue unidirectional rotating bezel, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, blue dial, self-winding chronometer Omega 3330 movement with chronograph, small seconds, and date, approximately 52 hours of power reserve, stainless steel bracelet. Water resistant to 300 m.