OMEGA Seamaster Diver 300M

Omega's Seamaster Diver 300M, reference 210.30.42.20.06.001, is a dive watch with a steel case measuring 42 mm across. The case stands 13.56 mm thick with a lug-to-lug of 49.9 mm, and a unidirectional rotating bezel surrounds the grey dial. A sapphire crystal with antireflective treatment on both sides covers the dial, and the screw-down crown works alongside a helium valve for saturation diving. Inside is the self-winding calibre 8800, a Master Chronometer movement certified by METAS with resistance to magnetic fields up to 15,000 gauss and a power reserve of 55 hours. The date function is set at three o'clock. A sapphire display back shows the movement. The steel bracelet closes with a foldover clasp that has a comfort setting and diver extension. Omega rates the case to 300 metres.