Case 33 — QC photography: what photos actually help verify a pre-owned listing?
Clarifying question for the thread: is the goal to check authenticity, condition, or both? For condition, the request list above is enough. For authenticity, you also need caseback, serial or reference engravings, and ideally movement photos. Movement photos usually require opening the watch, which a seller may reasonably refuse without a watchmaker present.
Document spring-bar diameter, end-tip fit and the strap’s clearance using appropriate measuring tools. If dimensions or compatibility are uncertain, ask a watchmaker rather than forcing a bar or substituting an unsuitable part.
Case 6 — Beginner glossary Q&A: complication, caliber, jewel count, power reserve
Caliber is the movement's model designation, like a part number. Two watches from different brands can share the same caliber family with different finishing or regulation. On a spec sheet it tells you what's inside and roughly what service parts are available. It doesn't tell you how well that particular example was adjusted.
Case 20 — Movement identification: the limits of a rotor photograph
Correction note for “Movement identification: the limits of a rotor photograph”: retain the wording beginning “Describe visible bridge shapes and markings separately…” 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. Keep the stated question separate from any broader claim.
Case 31 — QC checklist: prioritise observable faults over pixel hunting
Correction note for “QC checklist: prioritise observable faults over pixel hunting”: retain the wording beginning “Start with function, legibility, assembly and…” 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. Keep the stated question separate from any broader claim.
Case 23 — Crown operation: when a forum cannot diagnose the resistance
Summary draft for “Crown operation: when a forum cannot diagnose the resistance”: the answer addresses “Describe whether resistance occurs during winding or setting and…”; the related point is “Stop forcing it and arrange inspection rather than trying…”. 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.
A correction worth making: 'sapphire = premium, mineral = cheap' oversimplifies it. A well-fitted mineral crystal on a modest watch can be perfectly suitable, and replacing a cracked sapphire is usually more expensive. Material is one factor among several, alongside fit, gasket quality and coating.
Clarifying question: what does daily wear mean for you? Desk work, manual labour or sports change the answer. For desk use, sapphire's scratch resistance is the main benefit. For work with frequent knocks, a slightly domed acrylic that you can polish may last longer in practice, despite the scratches.
Case 48 — Lume comparison: keep exposure and charging conditions consistent · source wording exercise
Two glowing dials are shown with different camera exposure and unknown charging time. What can the images establish?
Review focus: source wording. Retain the source wording beside any paraphrase. Use the original answer fragment “Repeat with equal light source, charging duration, elapsed time and camera…” as the discussion anchor; no new event or result is supplied.
Exercise RWF-18803/48: address this question within its stated limits.
Case 27 — First QC request: the minimum useful information
State the model configuration, the specific concern and links to clear redacted images. Include complete instrument settings where relevant and say explicitly what evidence is missing.
Correction note for “Forum comparison archive: link the evidence and the correction”: retain the wording beginning “Add a dated correction near the original conclusion…” 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. Keep the stated question separate from any broader claim.
State the model configuration, the specific concern and links to clear redacted images. Include complete instrument settings where relevant and say explicitly what evidence is missing.
Case 15 — A maintenance log that remains useful after a sale
Which information should a transferable maintenance log retain while protecting the owner’s identity?
Exercise RWF-12618/15: address this question within its stated limits.
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.
Case 27 — Maintenance question: how do I tell if an automatic actually needs service?
A sudden rate change has several possible causes. Ask a watchmaker to test suspected magnetism rather than diagnosing it from a compass or attempting an adjustment based on forum replies.