OMEGA Seamaster Aqua Terra 150M

Omega's Seamaster Aqua Terra 150M ref. 220.12.41.21.03.005 has a steel case measuring 41 mm across. The case stands 13.2 mm thick, with a lug-to-lug span of 47.9 mm. A domed sapphire crystal with antireflective treatment on both sides covers the blue dial. Inside is the self-winding calibre 8916, a Master Chronometer movement certified by METAS with resistance to magnetic fields up to 15,000 gauss and a 60-hour power reserve. Small seconds and date sit at six o'clock, and the steel caseback is transparent. A screw-down crown accompanies the blue rubber strap on its steel folding clasp. The case carries a 150 metre water resistance rating.