Omega 30542323 (Reference: CO92106) Chronometer certified automatic chronograph movement, black round case with Arabic dial displaying day and date. Features sword hands, central seconds hand, sub-dial for elapsed time, rotating bezel, screw-down monopusher chronograph system, fast-set crown, skeleton case back, water resistance up to 60 ATM/600m. Comes with CHRONEXT certification guaranteeing authenticity along with a two-year warranty covering movement repairs.