Effective Way to Remove AR Coating After ROLEX Cyclops Removal (OEM Crystal)

[Casing23]

I own a genuine Rolex crystal with a Cyclops. I decided to remove the Cyclops, which was relatively easy, but unfortunately, the AR coating is proving to be much more stubborn. Despite using Cape Cod, PolyWatch, and a fair amount of polishing, the coating just won't come off. I've gone through YouTube tutorials and read various forum threads, but I still haven’t found a solution that works. I'd really appreciate it if anyone could share their experience or suggest an effective solution.

 

[KJ2020]

I would try acetone (Goof Off) but kind of doubt that will work. I use it to get rid of lingering cyclops glue but maybe it will do something to a coating.

Failing that I think a diamond paste would work. That actually etches glass lightly and is about the only thing that will "remove" scratches from a sapphire crystal. There are some different levels of graininess in diamond pastes, caution dictates using the finest, least abrasive one. And I would test it out on a junk crystal first.

 

[Casing23]

Diamond paste sounds familiar, thanks for the tip! For now, I’ve picked up a mildly abrasive polish for car paint that contains so-called nanoparticles, let’s see how it works. I’ll give it a try next week

 

[Rangerfan]

I have used Armour 68500 Glass Etching Cream to remove the scratched AR coating from eyeglasses. I am sure any glass etching cream will work the same. I have not used it on a crystal, but it wipes the coating right off glasses and leaves a perfect lens behind, with zero effort. It wipes on and wipes off, and has saved many pairs of glasses nearing the end of their life. You just need to be careful with it. Wear gloves and dont let it touch funished surfaces. It is very strong stuff. Also, don’t know about the sapphire material used for crystals v. the polycarbonate material used in high index lenses.