OMEGA Seamaster Aqua Terra 150M

The Omega Seamaster Aqua Terra 150M, reference 220.10.30.20.55.001, measures 30 mm across in steel. The case stands 10.55 mm thick with a lug-to-lug span of 36.5 mm, and the white dial sits under a domed sapphire crystal with antireflective coating on both sides. Inside is the self-winding calibre 8750, a Master Chronometer movement with Co-Axial escapement, resistant to magnetic fields up to 15,000 gauss and certified by METAS. It runs on a free sprung-balance with a silicon balance spring and shows the date at six o'clock, with 48 hours of power reserve. This watch is set with diamonds, and a sapphire display back shows the movement finish. A steel bracelet closes with a butterfly clasp. The steel case holds a 150 metre water resistance rating.