OMEGA Seamaster Aqua Terra 150M

Omega's Seamaster Aqua Terra 150M, reference 220.10.38.20.03.005, measures 38 mm across in steel. The case stands 12.36 mm thick with a lug-to-lug of 44.92 mm, and a screw-down crown protects the movement. A domed sapphire crystal with antireflective treatment on both sides covers the turquoise dial. Inside is the self-winding calibre 8800, a Master Chronometer certified movement with a silicon balance spring and resistance to magnetic fields up to 15,000 gauss. It runs with a 55 hour power reserve and shows the date. The steel bracelet closes with a foldover butterfly clasp that includes a comfort setting, and a sapphire display back shows the movement. The case carries a 150 metre water resistance rating.