Omega Aqua Terra 150M Co-Axial Master Chronometer Watch - 41 mm Steel Case - Grey Dial - Blue Structured Rubber Strap - 220.12.41.21.06.001 Fluted 42 mm steel case with

42 mm steel case with helium escape valve

date window at 3 o'clock

unidirectional rotating black ceramic bezel with diving scale filled with Super-LumiNova and numerals in colored lacquer representing the colors of the Olympic rings

5 mm titanium case with anti-magnetic properties

Omega Aqua Terra 150M Co-Axial Master Chronometer Watch - 41 mm Steel Case - Grey Dial - Blue Structured Rubber Strap - 220.12.41.21.06.001 Fluted 42 mm steel case with41 mm stainless steel 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, blue structured rubber strap with grey lining. Water resistant to 150 m (500 ft).