Extract from the archives #OME00045028 Wristwatch KO 2576 343 (automatic chronometer certified, sub-second) 11.517.604 14K gold-plated with stainless steel back February 9, 1951 Benelux
now it works again, new mineral glass, new spring, new brequetspring and new hands, and it is tikking away like new. From 1920 according to the serialnr.