OMEGA Seamaster Diver 300M

The Omega Seamaster Diver 300M, reference 210.32.42.20.04.001, is a dive watch with a 42 mm steel case. It measures 13.56 mm thick with a lug-to-lug of 49.9 mm, and a unidirectional rotating bezel surrounds the white dial. The sapphire crystal is domed and treated with antireflective coating on both sides. Inside is the self-winding calibre 8800, a Master Chronometer movement certified by METAS with resistance to magnetic fields up to 15,000 gauss. Power reserve runs to 55 hours. The date function sits alongside a helium escape valve and a screw-down crown, and the caseback is transparent. A black rubber strap closes with a steel pin buckle. Water resistance reaches 300 metres, backed by that screw-down crown.