Baylor: also a Sears brand.
Bifora: everyone's favorite watch advertisement is one for Bifora, with a 1970s guy in poofy hair, showing a lot of bare chest under his shirt, and holding an owl. The real reason we all own watches is the hope of being that cool.
I think Jardur made some very iconic military watches.
My obscure brands:
Fleuron (some nice gold chronographs and Felsa-based automatics, some much lower-end stuff);
Esiba (a Felsa-based automatic diver, sample size of one even though I search for more regularly);
Roberge (affiliated with a high-end Geneva jeweler, so made plenty of quartz watches with diamonds, but very fine watchmaking when they put their minds to it; complications up to perpetual calendar).