These watches- stamped W.W.W. for "Watch, Wristlet, Waterproof"- had to meet strict standards set by the British Ministry of Defence during the early 1940's. The specs were these: black dial; Arabic numerals; luminous hands (radium); 15 jewel movements; and waterproof. Twelve companies met these standards, and manufactured the watches that would be dubbed the "Dirty Dozen" and fascinate collectors for decades. They were: Buren, Cyma, Eterna, Grana, JLC, Lemania, IWC, Omega, Record, Timor, Vertex, and Longines. Omega produced pieces under this contract, although none of them saw combat during WWII, as production wasn't completed until after the Nazis surrendered in 1945. The MoD continued to issue these pieces for many years after the war, however, and a great number likely saw action in conflicts around the globe. Although manufactured by a dozen companies, Omega's models have proven to be among the most desirable versions for a few reasons. First, Omega utilized stainless steel for their version, despite the shortage caused by the war efforts going on around them, meaning that they've generally held up quite a bit better in the subsequent decades. Second, the Omega variants were powered by the 30T2 movement, an extremely dependable and reliable movement that remained in production until the 1960's and played a great role in Omega's post-war success and reputation. Stainless Steel case is approximately 35mm (excluding the crown). Case is in crisp condition. Omega 30T2 hand wound movement. Circa mid 1940's. The dial has a nice minty green relume done on very limited watches by the MoD themselves. Moreover, this watch received a fresh service recently. Love these watches for the big fat crown for easy winding. Won't find a better example currently on the market. Asking $1,800 via paypal (add fees) or wire. I can do face 2 face in NYC. Price includes shipping CONUS, add extra for international. Open to offers as well! No Returns. I have plenty of references and please look up the many positive feedbacks I have received on OF & WUS.