Yep, unfortunately... I own two ZF's 15500 v3s. Will have to get both serviced. One doesn't work properly OOTB (sports few issues like loose cannon pinion, poor power reserve, sticky rotor, un-pushable crown after hand wind), the second one does (tells time), but the rotor is loud and doesn't do much in terms of winding up the watch to the level of keeping the same performance on a daily basis.
Tad out of topic, but sort of a PSA: One needs to check case back in ZF's 15500 right after receiving one. I bought two and in both watches case back wasn't screwed all the way down (up
) to the point I could see, looking from the side, screws and light on the other side of the watch. Terrible QC at the factory, rep or not. Easy fix, but still.