Swatch, alphabetically, is Blancpain, Breguet, Glasshutte Original, Jaquet Droz, Longines, Mido, Omega, Rado, Tissot, Union Glasshutte and Harry Winston. It's worth noting that of that mess, only Longines, Mido, Omega, Rado, Tissot and Harry Winston have anything to do with the companies they're named after. Blancpain, Breguet, Glasshutte Original, Jacquet Droz and Union were all reconstituted out of whole cloth in the past 30 years.
But yeah. Swatch also owns ETA which means they're the heartbeat of a preposterous number of watch brands. What I find hilarious is the Omega boutique in downtown Seattle is now "Tourbillon Boutique" and while they carry Swatch, they don't carry Tissot because "tissot is a down-market brand" and I pointed to a glass case and said "that's a thirty dollar Swatch" and the tedious stuffed suit wrinkled his face up and went
Because really, if you're manning the counter of a Swatch boutique in a Fairmont in Seattle you may think you're all that? ...but you're not.
I've developed a general affection for Baume & Mercier (est. 1830, Richemont) and Universal Geneve (b. 1894 d. 2008, sort of the "Tudor" to Patek Philippe's "Rolex") because the Capeland Chrono is a lovely piece of Valjoux 7750 for not a lot of money (depending on the year) and because Universal Geneve managed to get weird without getting ugly and that, in all my studies, is a rare thing indeed.