OMEGA Seamaster Diver 300M

Omega Seamaster Diver 300M 210.20.44.51.03.001 is a chronograph with a 44 mm case in steel and yellow gold. The case measures 17.2 mm thick with a lug-to-lug span of 52.8 mm, and the blue dial sits under a domed sapphire crystal treated against reflections on both sides. A unidirectional rotating bezel surrounds the dial, and the screw-down crown works alongside a helium escape valve for saturation diving. Inside is the self-winding calibre 9900, a Master Chronometer movement with column wheel and Co-Axial escapement, certified by METAS and resistant to magnetic fields up to 15,000 gauss. Small seconds and date functions accompany the chronograph. A steel and yellow gold bracelet closes with a foldover clasp with comfort setting and diver extension. The case is rated to 300 metres.