OMEGA Seamaster Aqua Terra 150M

Omega's Seamaster Aqua Terra 150M, reference 220.12.38.20.02.001, has a steel case measuring 38 mm across. The case stands 12.24 mm thick with a lug-to-lug span of 45 mm. A domed sapphire crystal with anti-reflective coating on both sides covers the silver dial. Inside is the self-winding calibre 8800, a Master Chronometer movement with a Co-Axial escapement, resistant to magnetic fields up to 15,000 gauss, and it runs for 55 hours on a full wind. The date sits alongside a screw-down crown, and a transparent caseback shows the movement. A grey rubber strap closes with a steel foldover clasp. The screw-down crown helps hold the case to its 150 metre water resistance rating.