We have now the following details from our archives :

* OMEGA - special production for the U.S. Army
* Mvt N° 10'xxx'xxx
* Manual winding movement of calibre 30 T2 SC - 16
jewels - with special "chronometer rating" adjustment
* Watch reference : CK 2179 - round stainless steel
* Silvered metallic dial, radium Arabic hour markers
* Water-resistant
* screw-on case back with special "light" engraving :
U.S. Army
* manufactured and delivered to the U.S. Army = 25
July 1945

best regards

Vintage Information / JRD
Below, from Omega's vintage department. This was in reference to a specific watch belonging to someone else, not mine. I am convinced my watch is not one of these Army watches, but was one made for civilian use. Mine has no case markings. But is is otherwise an identical watch.