The Omega Speedmaster Moonwatch Professional Co Axial Master Chronometer Chronograph 42mm is a 42 mm watch from the Speedmaster collection. Its 18kt sedna gold case is 13.18 mm thick and 47.5 mm from lug to lug, with 20 mm lugs. It is water resistant to 50 m. The crystal is sapphire.

The manufacturer’s list price is US$36,100. It comes in 11 versions, with black, silver, green, brown, yellow and gold dials.