RE: [Demo notebook] Reference notebook: corrections and recurring beginner questions · RWI-00544

Case 9 — Crystal types: sapphire, mineral and acrylic trade-offs for daily wear

Spec sheets list sapphire, mineral or acrylic crystals, and opinions in threads are very strong. For a daily-wear watch, what are the real trade-offs, and is an anti-reflective coating worth paying for?

Exercise RWI-00544/9: address this question within its stated limits.