OMEGA Seamaster Diver 300M

Omega's Seamaster Diver 300M, reference 210.32.42.20.03.001, is a 42 mm dive watch in steel. The case measures 13.56 mm thick with a lug-to-lug of 49.9 mm, and a unidirectional rotating bezel surrounds the blue dial. Inside is the self-winding calibre 8800, a Master Chronometer movement certified by METAS with a silicon balance spring and 55 hours of power reserve. A domed sapphire crystal with antireflective treatment on both sides covers the dial, and the date sits at three o'clock. The screw-down crown and helium escape valve point to serious diving intent, and the transparent caseback shows off the movement. Blue rubber strap with a steel pin buckle completes the package. The screw-down crown helps hold the case to its 300 metre rating.