OMEGA Seamaster Diver 300M

Omega's Seamaster Diver 300M, reference 210.92.44.20.01.001, has a black ceramic case measuring 43.5 mm across. It stands 14.27 mm thick with a lug-to-lug span of 51.5 mm, and a unidirectional rotating bezel surrounds the dial. This is a dive watch built around the self-winding calibre 8806, a Master Chronometer movement certified by METAS and resistant to magnetic fields up to 15,000 gauss. Power reserve runs to 55 hours. A domed sapphire crystal with antireflective coating on both sides covers the black dial, and a helium valve sits alongside the screw-down crown. The transparent caseback shows the movement's rhodium-plated rotor and Geneva waves finish. A black rubber strap with a ceramic pin buckle completes the piece. The screw-down crown helps hold the case to its 300 metre water resistance rating.