Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer GMT Worldtimer 126.96.36.199.03.001. 43 mm stainless steel case. Blue dial with date aperture at 6 o’clock. Inner 24-hour GMT ring, outer world time zone ring. Automatic, Swiss Made. Omega Caliber 8938, based on 8900, 39 jewels, power reserve of 60 hours. Resistant to magnetic fields reaching 15,000 gauss. Blue rubber strap with stainless steel tfolding buckle. Water resistance 150m.