OMEGA Seamaster Aqua Terra 150M

Omega's Seamaster Aqua Terra 150M, reference 220.50.41.21.03.001, has a 41 mm case in Sedna gold. It measures 13.2 mm thick with a lug-to-lug of 47.9 mm, and the blue dial sits under a domed sapphire crystal with antireflective treatment on both sides. The self-winding calibre 8917 drives it, a Master Chronometer movement certified by METAS and resistant to magnetic fields up to 15,000 gauss. A free sprung-balance with a silicon balance spring shows small seconds and date at six o'clock. The screw-in crown and transparent caseback are both present, and the rotor carries a Sedna gold finish with Geneva waves in arabesque. Power reserve runs to 60 hours. The Sedna gold bracelet closes with a butterfly clasp, and the case is rated to 150 metres.