RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-27341

Case 1 — What a water-resistance claim does and does not establish

Summary draft for “What a water-resistance claim does and does not establish”: the answer addresses “Ask a qualified watchmaker about a suitable test for that individual…”; the related point is “A photograph or a caseback engraving is not…”. Keep both connected to the opening question, and mark any conclusion needing further records as unresolved. Review focus: scope. Keep the stated question separate from any broader claim.