OMEGA Seamaster Aqua Terra 150M

Omega's Seamaster Aqua Terra 150M, reference 220.20.41.21.06.001, has a 41 mm case in steel and Sedna gold. The case measures 13.2 mm thick with a lug-to-lug span of 47.9 mm. A domed sapphire crystal with anti-reflective treatment on both sides covers the grey dial. Inside is the self-winding calibre 8900, a Master Chronometer movement with a Co-Axial escapement and resistance to magnetic fields up to 15,000 gauss, giving 60 hours of power reserve. The watch has a date function and a time zone display, and the screw-in crown secures the case while a transparent caseback shows the movement. It is fitted with a steel and Sedna gold bracelet closed by a butterfly clasp. The case carries a 150 metre water resistance rating.