RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-00385
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February 25, 2018 at 6:06 pm
#6021
ReferenceLog 02880
Participant
Case 23 — Accuracy expectations: is -8 s/d acceptable on an entry-level automatic?
A correction to a common belief: an automatic doesn't need to match a quartz watch to be healthy. Consistency matters more than the absolute figure. A watch that's reliably -8 every day is easy to live with, since you correct it once a week. One that swings from +10 to -15 is the real concern.