Omega RCAF Monopusher ref 6W/16 Chronograph issued to the Canadian AirforceIn the 1950s, the Canadian military commissioned a number of well regarded manufacturers to produce purpose built chronographs, in a similar way to the British army and the Dirty Dozen. These manufacturers included Breitling, Omega, and Rodania all of which produced strikingly similar timepieces for the Royal Canadian Navy and Air Force. These watches were fitted with white dials, all of which were delivered unsigned except for those made by Omega.