And I understand that these Moonswatches are sealed units whose maintenance is limited to battery changing. This means that it will be necessary to destroy the case to gain access to change the movement or carry out any work on it beyond battery changing.
That is not genuinely "sustainable" in my view, no matter what the plastic is made of. This is why I say it is all about greenwashing and marketing. It's just ultimately a throw away item that has nice warm snugly feeling fad-words related to it that appeal to a certain demographic so that hey don't think how wasteful its manufacture and ultimate fate will almost certainly be.