Polywatch polish tested with deep scratches (works well) 4K
Polywatch Poly Watch Plastic Crystal Glass Polish & Scratch Remover Repair Tool with Blue Cloth : Clothing, Shoes & Jewelry
Klockarmbandet Polywatch Kit - For shiny times - plastic polish
How to polish a Hardlex crystal, is it possible?
Could a jewelry polishing stick (such as the Connoissuers diamond dazzle stik) be used to polish the crystal of a watch? Would that remove scratches? - Quora
Polywatch
Removing a scratch from the Q Timex Reissue with PolyWatch
F】 #TBT Polishing Your Watch Crystals — Just Do It!
polyWatch - Glass Polish
Does PolyWatch Actually Work To Remove Crystal Scratches?!