State whether thickness includes the highest point of a domed crystal. Different measurement methods can produce different figures, so keep both the source and method beside each dimension.
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Case 30 — Comparing versions without mixing case sizes
Match reference, dimensions and configuration first. List confirmed differences separately from seller descriptions and date the comparison so later readers understand its scope.
Case 14 — Strap dimensions: lug width, taper, thickness and spring bar diameter explained
Summary order of importance. 1) Lug width, measured between the lugs. 2) Lug-end thickness against clearance. 3) Spring bar diameter. 4) Taper and buckle width. 5) Length, which is usually given as long side / short side in mm and should be compared with a strap that already fits you.
Case 34 — Crystal reflections: why a dark patch is not a coating test
Correction note for “Crystal reflections: why a dark patch is not a coating test”: retain the wording beginning “No single lighting setup settles…” 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.
Method note for “Comparison thread: 38mm vs 40mm versions of the same field watch, with a dated correction log”: use “Diameter alone tells you little…” 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. Keep the stated question separate from any broader claim.
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 6 — Comparing versions without mixing case sizes
Clarification for “Comparing versions without mixing case sizes”: the point beginning “Match reference, dimensions and…” 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.
Method note for “Maintenance question: how do I tell if an automatic actually needs service?”: use “Useful signs, in rough order of seriousness: power reserve noticeably shorter…” 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. Keep the stated question separate from any broader claim.
Case 34 — Strap dimensions: lug width, taper, thickness and spring bar diameter explained
I want to buy aftermarket straps but keep seeing 20/16, 22mm, 4mm thick and spring bar sizes. Which measurements do I actually need to take from my watch, and how do I measure them without the right tools?
Exercise RWF-15814/34: address this question within its stated limits.
Case 16 — Accuracy expectations: is -8 s/d acceptable on an entry-level automatic?
One method that often helps without any service is using overnight resting position to cancel daily drift. Many watches gain in some positions and lose in others. If yours loses on the wrist, try leaving it crown up or dial up overnight and log the result for a few nights. Some people get close to zero this way.
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.
Clarification for “Comparing versions without mixing case sizes”: the point beginning “Match reference, dimensions and…” 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 40 — Magnetism and rate: record evidence before naming a cause · source wording exercise
A sudden rate change is being attributed to magnetism without a measurement. How should the discussion be structured?
Review focus: source wording. Retain the source wording beside any paraphrase. Use the original answer fragment “A competent watchmaker can test and diagnose it; random adjustment…” as the discussion anchor; no new event or result is supplied.
Exercise RWF-10720/40: address this question within its stated limits.
Case 17 — Seller review template: facts, dates and unresolved questions
Summary draft for “Seller review template: facts, dates and unresolved questions”: the answer addresses “Use fields for order date, promised terms, dated…”; the related point is “Leave unsupported fields blank and separate observations from opinions; this…”. 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 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.