This Omega is 44.25 mm stainless steel case with antimagnetic design, transparent back, black ceramic bezel with tachymeter scale in liquidmetal, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, black dial with racing style minute-track, caliber 9900 self-winding Co-Axial master chronometer movement with chronograph and date functions, approximately 60 hours of power reserve, black leather strap. Water resistant to 50 m (167 ft).