RE: [Demo notebook] Reference notebook: corrections and recurring beginner questions · RWI-30288
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June 12, 2026 at 7:17 pm
#246306
CaliberReader 04962
Participant
Case 1 — 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-30288/1: address this question within its stated limits.