Nice example of U.S.Army Air corp hack set A-11. Movement is in the gold gilt finish  y559165 which dates production to 1943. Ordinance ; U.S. Army A.C. ,watch navigation hack, Type A-11 ,Spec. no. 94-27834 , Ser. no. AF43-29349 ,mfgrs. part no. 1783, Ord.no. W535ac-34898Elgin.Overall in high condition with pristine dial and factory hands. Case measures 31.6 x 39 mm overall and comes with new military replacement  canvas strap,  steel buckle....ready to go!