The Omega Seamaster Diver 300M Co Axial Master Chronometer 42mm is a 42 mm watch from the Seamaster Diver 300M collection. Its bronze gold case is 13.56 mm thick and 49.9 mm from lug to lug, with 20 mm lugs. It is water resistant to 300 m. The crystal is sapphire.

The manufacturer’s list price is US$16,600. It comes in 8 versions, with blue, black, white, green, grey and gold dials.