Case 27 — Accuracy expectations: is -8 s/d acceptable on an entry-level automatic?
My entry-level automatic loses about 8 seconds a day. The spec sheet lists a tolerance range, but I'm not sure how to read it or whether my measurement is reliable. Is this something to fix or something to live with?
Exercise RWF-29865/27: address this question within its stated limits.
Case 27 — Timegrapher reading context: what do rate, amplitude and beat error actually tell me?
I ran a watch on a basic timegrapher and got +6 s/d, 245 degrees amplitude and 0.8 ms beat error, dial up, about an hour after winding. Is this good, bad or normal? I don't want to send it for service on a single reading.
Exercise RWF-29065/27: address this question within its stated limits.
Case 32 — QC photographs: perspective or a genuinely tilted index?
Summary draft for “QC photographs: perspective or a genuinely tilted index?”: the answer addresses “Request a level straight-on image with the hands…”; the related point is “Compare two independently aligned images before drawing a conclusion; an overlay…”. 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 23 — Maintenance question: how do I tell if an automatic actually needs service?
The calendar interval is a conservative default, not a rule. Useful signs, in rough order of seriousness: power reserve noticeably shorter than spec from full wind, rate drifting outside its usual range, the watch stopping on the wrist, gritty or rough winding, and the date changing slowly or late.
Case 213 — What a water-resistance claim does and does not establish · correction exercise
Summary draft for “What a water-resistance claim does and does not establish”: the answer addresses “A photograph or a caseback engraving is not…”; the related point is “Ask a qualified watchmaker about a suitable test for that individual…”. Keep both connected to the opening question, and mark any conclusion needing further records as unresolved. Review focus: correction. Preserve the old wording if a later source changes the interpretation.
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.
Case 27 — Movement identification: the limits of a rotor photograph
Limit of the answer in “Movement identification: the limits of a rotor photograph”: “Describe visible bridge shapes and markings separately…” 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 30 — Shipping timeline: separate dispatch, handover and scan events
Summary draft for “Shipping timeline: separate dispatch, handover and scan events”: the answer addresses “Distinguish label creation from physical acceptance and retain dated…”; the related point is “Ask the sender or carrier for clarification; missing scans alone…”. 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 49 — Lug-to-lug and end-link overhang in wrist photographs · source wording exercise
Method note for “Lug-to-lug and end-link overhang in wrist photographs”: use “Use a similar camera distance and neutral wrist position; photographs support…” 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. Retain the source wording beside any paraphrase.
Can the same settings and winding state be used for several positions? Record each position separately rather than combining measurements taken under different conditions.
Case 35 — Lume comparison: keep exposure and charging conditions consistent
Correction note for “Lume comparison: keep exposure and charging conditions consistent”: retain the wording beginning “Treat the comparison…” 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 16 — A maintenance log that remains useful after a sale
Keep the date, work performed, provider invoice reference and test results where available. Redact addresses and payment information; do not invent service events to fill an empty history.
Case 17 — Shipping timeline: separate dispatch, handover and scan events
Correction note for “Shipping timeline: separate dispatch, handover and scan events”: retain the wording beginning “Distinguish label creation from physical acceptance and retain dated…” 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.
Correction note for “Comparing dial colour under different lighting”: retain the wording beginning “Compare controlled images where available and avoid calling a…” 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.
Limit of the answer in “Model comparison: dive bezel action and alignment, how to compare fairly”: “Separate three properties: click count (60 or 120 positions), feel (how…” 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.