The Omega Co-Axial Master Chronometer Moonphase Chronograph Gem-Set: case, platinum and gold alloy, 44.5mm in diameter; lug width 21mm; water resistance, 100 meters. Sapphire crystal with double antireflective coating. Movement, Omega caliber 9905, automatic chronograph with column wheel, certified Master Chronometer, antimagnetic to at least 15,000 gauss; silicon balance spring with two mainspring barrels running in series; power reserve, 60 hours. Moonphase indication with date; 18k Sedna gold rotor and balance bridge. For more information, visit Omega.
Hands-On Three Omega Speedmaster Co-Axial Master Chronometer Moonphase Chronograph 44.25mm In Platinum-Gold With Gem-Set Dials
