OMEGA Seamaster Aqua Terra 150M

Omega's Seamaster Aqua Terra 150M, reference 220.32.38.20.03.001, has a 38 mm steel case. Thickness measures 12.36 mm with a lug-to-lug of 44.92 mm, so it wears compactly on the wrist. The turquoise dial sits under a domed sapphire crystal with antireflective treatment on both sides. Inside is the self-winding calibre 8800, a Co-Axial movement certified as a Master Chronometer and resistant to magnetic fields up to 15,000 gauss, with a free sprung-balance and silicon balance spring. Power reserve runs to 55 hours. A date function is set into the dial, and a screw-down crown adds security against the elements. The transparent caseback shows the movement in operation. A black rubber strap closes on a steel folding clasp, and Omega rates the case to 150 metres.