OMEGA Seamaster Aqua Terra 150M

Omega's Seamaster Aqua Terra 150M, reference 220.30.43.22.10.001, has a 43 mm steel case. The case measures 14.12 mm thick with a lug-to-lug span of 50 mm. It is a GMT watch with a green dial and a worldtimer function alongside the second time zone. The self-winding calibre 8938 drives the watch, certified as a Master Chronometer by METAS and resistant to magnetic fields up to 15,000 gauss, with a free sprung-balance and silicon balance spring. Power reserve runs to 60 hours. A domed sapphire crystal with antireflective treatment on both sides covers the dial, and the display back shows the movement. The date sits alongside the screw-down crown, and a steel bracelet closes with a butterfly clasp. Fitted with that crown, the case holds a 150 metre water resistance rating.