OMEGA Seamaster Diver 300M

The Omega Seamaster Diver 300M 210.30.44.51.01.001 is a steel chronograph with a black dial and a rose gold rotating bezel. The 44 mm case, 17.2 mm thick, is fitted with a sapphire crystal, a helium valve, and a date function, and is water resistant to 300 metres. It is powered by the automatic Omega calibre 9900, a Master Chronometer movement with a 60 hour power reserve. The bracelet is steel, matching the case.