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RE: [Demo notebook] Workbench questions: what to record before asking for service · RWI-20591

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Case 14 — 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-20591/14: address this question within its stated limits.