OMEGA Seamaster Aqua Terra 150M

Omega's Seamaster Aqua Terra 150M ref. 220.52.41.21.03.002 is a 41 mm case in Sedna gold. The case measures 13.2 mm thick with a lug-to-lug span of 47.9 mm, and a domed sapphire crystal with antireflective treatment on both sides covers the blue dial. Inside is the self-winding calibre 8917, a Master Chronometer movement with a silicon balance spring and resistance to magnetic fields up to 15,000 gauss, giving 60 hours of power reserve. Small seconds and date sit at six o'clock, and the rotor and balance bridge carry a Geneva waves finish in arabesque. A screw-down crown protects the movement, and a sapphire display back shows it off. The blue rubber strap closes with a Sedna gold folding clasp. Omega rates the case to 150 metres.