OMEGA Seamaster Aqua Terra 150M

Omega's Seamaster Aqua Terra 150M, reference 220.23.41.21.02.001, comes in a 41 mm steel and Sedna gold case. The case measures 13.2 mm thick with a lug-to-lug of 47.9 mm, and the silver dial sits beneath a domed sapphire crystal with anti-reflective treatment on both sides. Inside is the self-winding calibre 8900, a Co-Axial Master Chronometer movement certified by METAS and resistant to magnetic fields up to 15,000 gauss, with a power reserve of 60 hours. The screw-down crown adds a practical touch to daily wear. A date function and a time zone display round out the useful complications, and the transparent caseback lets the finished rotor and bridges show through. A brown alligator leather strap closes with a steel foldover clasp. The case carries a 150 metre water resistance rating.