I’m in the same boat. Never heard of this collaboration being anything endorsed by Apple, but that band is definitely made by Apple. The engraving is ever so slightly off center, which doesn’t feel like something Apple would let slide. (Especially with LV)
My guess is maybe a fan-made print or, more likely, LV employee gifts? I’ve seen other bands resold with the same styling, LV branding engraved on the pin one way or another. Where is this listing? In the states?
edit: Wanted to add, it may be the lighting, but that doesn’t necessarily look like any OEM color. It’s too light to be black, yet not quite gray either. (also Gray only came in Black pins?) I can’t think of any 42mm color that matches the in-between. Definitely an interesting band nonetheless.