The Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 43mm is a 43 mm watch from the Speedmaster collection. Its stainless steel case is 13.61 mm thick and 48.6 mm from lug to lug, with 21 mm lugs. It is water resistant to 50 m. The crystal is sapphire.

The manufacturer’s list price is US$19,300. It comes in 2 versions, with black and grey dials.