2 years manufacturing defects warranty, and, if one is to receive the watch and not be happy with it, returning it to Ophion in unused condition with all packaging etc will get a full refund.
Miguel made the point previously to me that seeing a watch in marketing or review pictures is one thing, but can be different to actually having it in hand, and as such feels that the only way to build a brand that people can trust without actually seeing the pieces in person is to go out of his way to accommodate (even if that means a refund if someone is not happy with the piece on receipt).
Hope that is helpful, and I would encourage you to reach out to Ophion should you be interested. Personally, I’m very happy with them. And, I of course have no affiliation to them other than owning 2 of their pieces, and being quite enthusiastic about them

All the best,
Niall