This week, we look at some highly unusual vintage watches, two of which have real mysteries surrounding their origin. Specifically, we’re looking at a Rodania that is an almost exact duplicate of a well-known military Lemania, and a Zenith El Primero with a formerly unknown yellow gold case. The rare Angelus Chrono-Datoluxe, and the soccer-dedicated Breitling are much better documented, but no less interesting in their inventive variations on the chronograph complication. This is your Bring A Loupe for December 16, 2016.