It doesn't work. At least when I tried. I have used diamond paste compound polish on mineral and hardlex which can polish light scratches but it takes A LOT of work. I used my Dremel with a soft polishing pad bit. Any gouges it won't help.

IMO, swapping the crystal is easier, less problematic (accidentally buffing bezels/cases etc) and looks better in the end.

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No, Hardlex is mineral glass, apparently chemically hardened. In any case, it's glass, and Polywatch and other metal and plastic polishing compounds that are commonly used on acrylic crystals will have little or no effect on glass.

 

Nope. Dont do it. Swap out the crystal

 

No

 

Almost certainly not. By the time you’ve bought a couple of grades of diamond paste needed to do the job a replacement crystal is a viable option.

 

Yeah, alas a no here. It seems like it would work in theory. Get a new crystal.

 

Tried it. Didn't work. New glass it is... [emoji56]

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Where can I get new Hardlex doom glass guys?

 

Watch Crystals / Watch Glass All Types

 

Consider sapphire?