Omega Aqua Terra 150M Co-Axial Master Chronometer Watch - 38 mm Steel Case - Black Dial - Black Structured Rubber Strap - 220.12.38.20.01.001 Agate scratch-resistant sapphire crystal anti-reflective treatment

scratch-resistant sapphire crystal anti-reflective treatment inside

brown shell dial with diamond hour markers

5 mm Sedna gold case

blue mother-of-pearl dial with a wavy pattern extending from the iconic claws and 12 diamond indexes

Updated with modern design details

Omega Aqua Terra 150M Co-Axial Master Chronometer Watch - 38 mm Steel Case - Black Dial - Black Structured Rubber Strap - 220.12.38.20.01.001 Agate scratch-resistant sapphire crystal anti-reflective treatment38 mm stainless steel case, transparent back, screw in crown, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, black dial with a horizontal teak pattern, caliber 8800 self winding Co Axial master chronometer movement with date function, approximately 55 hours of power reserve, black structured rubber strap with grey lining. Water resistant to 150 m (500 ft).