And you are right - at some point the word QUARTZ will appear in the conversation. I feel perhaps that it repels some watch lovers, just like the coil block repels the glide wheel.
Now there's an irony to ponder,
Does describing Spring Drive precisely result in a smooth repulsion of the potential customer ? (no tic toc, no A-B decision needed) just a smooth transition gliding away from the Spring Drive towards another mechanical watch? ... well, that's another subject.
Your two submissions were:
"A Spring Drive watch is...a hybrid quartz-mechanical watch that is regulated by feedback on a glide wheel connected to the gear train" "A Spring Drive watch is...a hybrid mechanism that adapts mechanical power from the mainspring to power a timing circuit, which regulates a glide wheel connected to the gear train"
Keeping the Q word intact, could they be co-joined into: