Every few weeks someone asks if we can fit a sapphire crystal to a vintage watch, and the honest answer is that we can but we won’t. The acrylic dome on a fifties dress watch isn’t a cost-saving to be corrected. It’s part of the design. It sits taller, catches light along its edge, and distorts the dial at an angle in a way flat sapphire never will.
Acrylic scratches, yes. It also forgives. A scuffed crystal polishes back to optically clear in five minutes with a cloth and a dab of polishing compound, toothpaste in a pinch. Sapphire doesn’t scratch; it chips, and then it’s a sourcing project. On a watch you actually wear, the soft material that heals beats the hard one that shatters.
Where a crystal is cracked or crazed past saving, we replace it with the correct-profile acrylic, and the listing says so. The scratched original goes in the drawer, because someone will always want it back.