RE: [Demo notebook] Collector’s comparison desk: dimensions, fit and documented differences · RWI-09246
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August 11, 2020 at 9:55 am
#71040
TimingNotes 07899
Participant
Case 19 — Crystal types: sapphire, mineral and acrylic trade-offs for daily wear
On anti-reflective coatings: inner-surface AR cuts glare without wear concerns. Outer-surface AR improves legibility further but can scuff over time, and the scuffs show up as hazy patches in certain light. When comparing two watches, check which surfaces are coated. Spec sheets often just say 'AR coated' without saying where.