This Omega is 38 mm stainless steel case, transparent back, screw-in crown, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, sun-brushed blue dial with a horizontal teak pattern, caliber 8800 self-winding Co-Axial master chronometer movement with date function, approximately 55 hours of power reserve, blue leather strap. Water resistant to 150 m (500 ft).