OMEGA Seamaster Diver300 Co axial chronometer chronograph.All Steel 44mm casing,sapphire crystal,grey dial. Omega 9900 Self-winding chronograph with column wheel and CoAxial escapement. Certified Master Chronometer,
approved by METAS, resistant to magnetic fields reaching
15,000 gauss. Silicon balance-spring, 2 barrels mounted in
series, time zone function. Central hour, minute and
chronograph seconds hands, small seconds hand, 12-hour
and 60-minute recorders. Rhodium plated finish with
Geneva waves in arabesque.Attached to an all steel link bracelet.Water resistant to 300 meters.