OMEGA Seamaster Diver 300M

The Omega Seamaster Diver 300M 210.22.44.51.01.001 is a chronograph with a 44 mm case in steel and Sedna gold. The case measures 17.2 mm thick with a lug-to-lug of 52.8 mm, and a unidirectional rotating bezel surrounds the black dial. A domed sapphire crystal with antireflective treatment covers the dial, and the screw-down crown works alongside a helium valve for diving use. Inside is the self-winding calibre 9900, a Master Chronometer movement with column wheel and Co-Axial escapement, resistant to magnetic fields up to 15,000 gauss with 60 hours of power reserve. Small seconds and date functions round out the display. A black rubber strap with a steel pin buckle completes the piece, and Omega rates the case to 300 metres.