RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-25905
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Case 199 — Timegrapher reading context: what do rate, amplitude and beat error actually tell me? · correction exercise
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.
Review focus: correction. Preserve the old wording if a later source changes the interpretation. Use the original answer fragment “Compare it with appropriate specifications and a qualified watchmaker’s assessment; a…” as the discussion anchor; no new event or result is supplied.
Exercise RWI-25905/199: address this question within its stated limits.