Case 36 — Date window centring: compare the same date at the same angle
Use the same numeral, camera axis and approximate image scale. Keep the uncropped originals alongside the detail crops and distinguish optical balance from physical window alignment.
The core trade-off is scratch resistance versus shatter resistance. Sapphire is very hard to scratch but can chip or crack from a sharp impact on an edge. Acrylic scratches easily but flexes, rarely shatters, and light scratches can be polished out at home. Mineral glass sits in between and is often the cheapest to replace.
Case 38 — What a water-resistance claim does and does not establish · source wording exercise
Correction note for “What a water-resistance claim does and does not establish”: retain the wording beginning “A photograph or a caseback engraving is not…” in the record. If later material changes it, add the date, the changed wording and the source for that change; do not invent a completed correction here. Retain the source wording beside any paraphrase.
Limit of the answer in “Crystal reflections: why a dark patch is not a coating test”: “No single lighting setup settles…” is an excerpt from the discussion, not an independent verification. A reader needs the relevant original material before treating an interpretation as established. Review focus: scope. Keep the stated question separate from any broader claim.
Case 8 — Bracelet fit: measuring the usable clasp adjustment
A nominal case diameter says little about a bracelet that cannot be shortened enough. How should a sizing question be documented?
Exercise RWF-29888/8: address this question within its stated limits.
Case 17 — Lug-to-lug and end-link overhang in wrist photographs
Summary draft for “Lug-to-lug and end-link overhang in wrist photographs”: the answer addresses “Record lug-to-lug and the effective span…”; the related point is “Use a similar camera distance and neutral wrist position; photographs support…”. 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.
Case 88 — Packing photographs: document condition without exposing an address · comparison exercise
Reader check for “Packing photographs: document condition without exposing an address”: distinguish the discussion point “Photograph the item and protective packing…” from its proposed application. The thread offers a way to reason about the question, without adding a personal experience or a newly observed outcome. Review focus: comparison. Make the basis of a comparison explicit before interpreting it.
Case 23 — Lume comparison: keep exposure and charging conditions consistent
Summary draft for “Lume comparison: keep exposure and charging conditions consistent”: the answer addresses “Treat the comparison…”; the related point is “Repeat with equal light source, charging duration, elapsed time and camera…”. 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.
Case 276 — Disputed observation: is this dial colour shift real or just lighting? · reader check exercise
Method note for “Disputed observation: is this dial colour shift real or just lighting?”: use “Plating, lacquer thickness and supplier changes can all shift…” as a row heading in a proposed working record. Put the statement, its supporting source or measurement, and any unresolved detail in separate fields. This proposes a format; it supplies no additional evidence. State what a new reader can and cannot infer from this exercise.
Summary draft for “Movement identification: the limits of a rotor photograph”: the answer addresses “Describe visible bridge shapes and markings separately…”; the related point is “Ask a qualified watchmaker to inspect it if identification matters for…”. 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.
Case 19 — Timegrapher reading context: what do rate, amplitude and beat error actually tell me?
Amplitude depends on the movement and measurement setup. Compare it with appropriate specifications and a qualified watchmaker’s assessment; a universal pass/fail threshold would be misleading.
Case 1 — Case finishing: distinguish a reflection from a surface mark
Limit of the answer in “Case finishing: distinguish a reflection from a surface mark”: “Ask for photographs with the light moved and…” is an excerpt from the discussion, not an independent verification. A reader needs the relevant original material before treating an interpretation as established. Review focus: scope. Keep the stated question separate from any broader claim.
Case 2 — Comparison thread: 38mm vs 40mm versions of the same field watch, with a dated correction log
Summary so far. Rows: diameter, lug-to-lug, thickness (method stated), lug width, crystal type, water resistance (as specified), movement family, production period. Each row has a source tag. Corrections go in the dated log with old and new values. If nobody objects, that's the template, and later posts should give evidence rather than restate opinions.
Case 40 — Maintenance question: how do I tell if an automatic actually needs service? · source wording exercise
Correction note for “Maintenance question: how do I tell if an automatic actually needs service?”: retain the wording beginning “Useful signs, in rough order of seriousness: power reserve noticeably shorter…” in the record. If later material changes it, add the date, the changed wording and the source for that change; do not invent a completed correction here. Retain the source wording beside any paraphrase.
A bright initial glow followed by a steep drop is normal for photoluminescent pigments. Afterglow fades fastest in the first minutes and then settles to a dim, long-lasting level that dark-adapted eyes can still read. The real question is whether it's readable after an hour in darkness, not how it looks right after charging.