OMEGA Seamaster Aqua Terra 150M

The Omega Seamaster Aqua Terra 150M, reference 220.22.41.21.02.001, has a 41 mm case in steel and Sedna gold. The case measures 13.2 mm thick with a 47.9 mm lug-to-lug span, and the crown screws down against the middle case. A domed sapphire crystal with anti-reflective treatment on both sides covers the silver dial. Inside is the self-winding calibre 8900, a Master Chronometer movement certified by METAS with resistance to magnetic fields up to 15,000 gauss and a 60 hour power reserve. The date sits on the dial, and a sapphire caseback shows the finished rotor and bridges beneath. A black rubber strap with a steel foldover clasp completes the watch. Fitted to its screw-down crown, the case holds a 150 metre water resistance rating.