Never heard that. My understanding is that Willy Breitling sold the company to Schneider ( which leads to all those annoying eBay sellers saying that Sicura watches are made by Breitling) in April 1979, and that included the brand names Breitling and Navitimer. Sinn and O&Y bought up excess stock of cases, hands etc and subsequently sold near identical copies of Navitimers ( and had rights to the design), but called them Navigstor, Selectron, etc. This is all quite thoroughly documented. Given that Sinn and O&W begsn their versions using actual Breitling watch parts, it not a great leap to say they are virtually copies.