OMEGA Seamaster Diver 300M

Omega's Seamaster Diver 300M, reference 210.92.44.20.01.002, has a 43.5 mm black ceramic case. It measures 14.27 mm thick with a lug-to-lug span of 51.5 mm. A domed sapphire crystal with antireflective treatment on both sides covers the black dial, and a unidirectional rotating bezel surrounds it. The self-winding calibre 8806 drives the watch, certified as a Master Chronometer and resistant to magnetic fields up to 15,000 gauss, with a power reserve of 55 hours. As a dive watch it carries a helium valve and a screw-down crown, and the display back shows the finished movement underneath. A multicoloured polyamide NATO strap closes with a titanium pin buckle. The screw-down crown helps hold the case to its 300 metre water resistance rating.