The Saint Vitus is not necessarily a band of Stoner, although its trend is driven pro Stoner Doom and Doom Metal pro traditional style that helped to characterize both in sound and lyrical aspect (and even aesthetic).
It was formed in California in the late 70's, but only gave their faces to the world in the 80's, when it established itself as one of the bands precursor Traditional Doom Metal and one of the most influential pro Stoner Metal.