These words are very interesting because reflect the normal attitude of a collector towards the service of a movement.
In actual fact many 321 can be adjusted to run smoothly and to give the impression of being quite accurate as well.
However, this can be simply obtained through compensating the rate differences between different positions.
Obtaining a correct timegraph and adjusting the watch to isochronism and positions (whithin the possibilities of a sturd, reliable but not high-quality movement, of course) is a totally different and time consuming task.
This is the reason for which one must be very careful in judging different jobs.
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