Omega Aqua Terra 150M Co-Axial Master Chronometer Watch - 41 mm Steel And Sedna Gold Case - Silvery Dial - Black Structured Rubber Strap - 220.22.41.21.02.001 Taupe-Brown 42 mm sedna gold case

42 mm sedna gold case with anti-magnetic protection and helium escape valve

black ceramic pushpieces and screw-locked crown

24 mm stainless steel and 18K yellow gold case

27 mm steel and yellow gold case

Omega Aqua Terra 150M Co-Axial Master Chronometer Watch - 41 mm Steel And Sedna Gold Case - Silvery Dial - Black Structured Rubber Strap - 220.22.41.21.02.001 Taupe-Brown 42 mm sedna gold case41 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, silvery dial with a horizontal teak pattern, caliber 8900 self winding Co Axial master chronometer movement with date function, approximately 60 hours of power reserve, black structured rubber strap with grey lining. Water resistant to 150 m (500 ft).