OMEGA Seamaster Aqua Terra 150M

The Omega Seamaster Aqua Terra 150M, reference 220.10.38.20.10.003, has a 38 mm steel case. Thickness measures 12.24 mm with a lug-to-lug span of 45 mm, and a screw-down crown protects the movement. The green dial sits under a domed sapphire crystal with antireflective treatment on both sides. Inside is the self-winding calibre 8800, a Master Chronometer movement certified by METAS with resistance to magnetic fields up to 15,000 gauss, running on a free sprung-balance with a silicon hairspring and offering 55 hours of power reserve. A date function is included, and the steel caseback is transparent, showing the movement's Geneva waves and rhodium-plated finish. The watch is fitted on a steel bracelet with a butterfly clasp. The case is rated to 150 metres, or 15 bar.