TL;DR The right way to polish acrylic watch glass depends on how deep the scratches are. Shallow scratches come out with Polywatch polish and a microfiber cloth alone — no sanding needed. Medium scratches require sanding starting around 1200–1500 grit and working up through 2000, 2500, 3000, 4000, and 5000, finished with Polywatch on felt. … Continue reading How to Polish Acrylic Watch Glass – Step-by-Step Tutorial