A Look at How the New Fire, Water, and Vapour Apple Watch Faces Were Made ⇥ youtube.com

There aren’t many companies that would construct enormous scaled-up shells of a product to create custom videos specifically for it. Also, consider that each of these effects had to be created a second time with a different model, because these faces behave completely differently on pre-Series 4 watches. It looks like there’s an older-model Apple Watch rig at about twenty-five seconds into this video.