Do you get sawaab for every single moment/second you wear a jubbah, topi or immamah?
Yes, you get thawaab for wearing the sunnah libaas. However, for every second? I don’t know. A hadith says: “Whosoever holds on to my sunnah at the time of corruption in my ummah will get the reward of one hundred shaheed.” Allah is extremely generous; He looks at the intention in the heart and rewards according to that. The possibility is there.