OMEGA Seamaster Diver 300M

Omega's Seamaster Diver 300M 210.32.42.20.01.005 is a dive watch with a 42 mm steel case. The case measures 13.8 mm thick with a lug-to-lug of 49.7 mm, and a unidirectional rotating bezel surrounds the black dial. A domed sapphire crystal with antireflective treatment covers the dial, and a sapphire display back shows the movement. Inside is the self-winding calibre 8806, a Master Chronometer movement certified by METAS with a silicon balance spring and 55 hours of power reserve. The screw-down crown works alongside a helium valve for saturation diving. A black polyamide NATO strap on a steel pin buckle completes the watch. The case is rated to 300 metres, or 30 bar, of water resistance.