Case 15 — Clasp photographs: what to request before judging alignment
Correction note for “Clasp photographs: what to request before judging alignment”: retain the wording beginning “Request open and closed views from both sides,…” 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 — Bracelet fit: half-links, micro-adjust holes and the 'between sizes' problem
Wrist size changes during the day and with temperature, sometimes by several millimetres. A fit that feels tight in the afternoon may be right in the morning. Before buying parts, check the fit at different times. You may find the 'too tight' setting is only a problem a few hours a day.
Case 22 — First QC request: the minimum useful information
What should an initial QC request include so replies can address the actual question?
Exercise RWF-28599/22: address this question within its stated limits.
Case 18 — 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.
Summary draft for “Crystal types: sapphire, mineral and acrylic trade-offs for daily wear”: the answer addresses “The core trade-off is scratch resistance…”; the related point is “Sapphire is very hard to scratch but can chip or crack…”. 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.
Ask a qualified watchmaker about a suitable test for that individual case and record the test date and method. A photograph or a caseback engraving is not proof of water resistance.
Case 22 — 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 29 — Magnetism and rate: record evidence before naming a cause
Method note for “Magnetism and rate: record evidence before naming a cause”: use “Record the change and the circumstances without treating…” 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 13 — Maintenance question: how do I tell if an automatic actually needs service?
Common advice says service every five years, but service is expensive and some people run watches much longer. What observable signs actually indicate a mechanical watch needs attention, as opposed to just being due on a calendar?
Exercise RWF-21341/13: address this question within its stated limits.
Case 32 — Strap compatibility: width is only the first measurement
Two straps share the same nominal width but differ in thickness and spring-bar clearance. Which dimensions need checking?
Exercise RWF-20114/32: address this question within its stated limits.
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.
Lug width is the essential one: the inside distance between the lugs where the strap fits. Measure with a ruler marked in millimetres, ideally reading it under magnification. Most watches use even numbers (18, 20, 22mm), but odd widths exist. If you measure 19 or 21, measure again and check the manufacturer spec before ordering.
Clarifying question: does anyone in the thread have access to both versions at once? Without simultaneous comparison, every claim either way is weak evidence. If not, the next best option is photos with a grey card in frame and white balance locked or set manually, which at least makes separate photos roughly comparable.
Clarification for “Comparison thread: 38mm vs 40mm versions of the same field watch, with a dated correction log”: the point beginning “Add lug-to-lug, thickness and lug width…” 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 27 — Bracelet fit: half-links, micro-adjust holes and the 'between sizes' problem
Check whether a compatible half-link exists for the exact bracelet reference. Compatibility involves the connection and hardware, not just width. Ask a watchmaker if the correct part is uncertain.