OMEGA Seamaster Aqua Terra 150M

Omega's Seamaster Aqua Terra 150M, reference 220.10.41.21.02.004, has a steel case measuring 41 mm across. It stands 13.2 mm thick, with a lug-to-lug span of 47.9 mm. The silver dial sits under a domed sapphire crystal treated with antireflective coating on both sides. Inside is the self-winding calibre 8916, a Master Chronometer movement certified by METAS and resistant to magnetic fields up to 15,000 gauss, with a 60-hour power reserve. Small seconds and date appear at 6 o'clock, and the steel caseback is transparent. The steel bracelet closes with a butterfly clasp. Omega rates the case to 150 metres.