Omega Style No: 220.20.41.21.06.001 Omega Aqua Terra 150M Co-Axial Master Chronometer Watch - 41 mm Steel And Sedna Gold Case - Grey Dial - Brushed And Polished Steel And Sedna Gold Bracelet

41 mm stainless steel and 18K Sedna gold case, transparent back, screw-in crown, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, grey dial with a horizontal teak pattern, caliber 8900 self-winding Co-Axial master chronometer movement with date function, approximately 60 hours of power reserve, brushed and polished steel and Sedna gold bracelet. Water resistant to 150 m (500 ft).