Something to keep apart: sunburst and gradient dials can look like different colours depending on viewing angle, even on the same piece. A shift that appears only at certain angles is a finish effect, not a batch difference. Include a straight-on shot and one tilted shot so readers can tell the two apart.
A notation like 20/16 means 20mm at the lugs, tapering to 16mm at the buckle. Taper affects look and comfort more than fit. A strong taper suits smaller and dressier cases, a straight strap suits sport watches. Your buckle or clasp also has to match the narrow end, so check that if you want to reuse an existing buckle.
Request a level straight-on image with the hands clear of the marker. Compare two independently aligned images before drawing a conclusion; an overlay cannot correct an oblique camera angle.
Clarification for “Date window centring: compare the same date at the same angle”: the point beginning “Use the same numeral, camera axis…” belongs to the question as written. It should not be read as a report that a new check, purchase or experiment has been completed. Review focus: scope. Keep the stated question separate from any broader claim.
Case 31 — Disputed observation: is this dial colour shift real or just lighting?
Batch variation on coloured dials does happen in general. Plating, lacquer thickness and supplier changes can all shift tone, so the claim isn't implausible. Plausible isn't the same as confirmed, though. The thread should keep 'possible' and 'shown' as separate statuses rather than letting repetition turn a hypothesis into accepted fact.
Case 13 — Forum comparison archive: link the evidence and the correction
Clarification for “Forum comparison archive: link the evidence and the correction”: the point beginning “Add a dated correction near the original conclusion…” belongs to the question as written. It should not be read as a report that a new check, purchase or experiment has been completed. Review focus: scope. Keep the stated question separate from any broader claim.