Never heard of a Zeiss Monocular 20X60 IS. But Zeiss has made a 20X60 binocular for years.
Limited info out there about the binocular. Probably because they are REALLY expensive. Never saw or heard anything about them being fragile. Have heard the optics are first rate, and the IS system really works. Maybe not perfectly from standing, but from, say, a sitting position, they work well.
I'd like to know what you discover. I've long dreamed of a 20X60 IS binocular. Maybe an IS monocular would be a neat thing to have too. E