Question: what are dirty dozen watches?
Answer: Due to the rigours of military life, very strict specifications were set, and all in, twelve watch manufacturers were eventually accepted, resulting in the nickname 'The Dirty Dozen'. They were: Buren, Cyma, Eterna, Grana, Jaeger Le-Coultre, Lemania, Longines, IWC, Omega, Record, Timor and Vertex.