Same thing happened with the Autavia- the early prototypes had "Waterproof- Guaranteed 330 FT Under Water" while the production watches just say "100m".
I suspect that the first wording was great from a marketing point of view, but the truth is no watch is "water proof"- it's more "water resistant", which is the wording you'll see on the website.
View attachment 403607
Click to expand...