1973
Cal. 1310
4
ADJUSTMENT OF THE RATE
2.1. Open the case.
2.2. Remove and clean the back.
2.3. Place watch on captor, movement side
uppermost, and press button "l Hz" of
DELTATEST.
Note
Generally, a measuring time of 10 seconds and
a measuring accuracy of 1/100th second will be
used.
2.4. Read instant rate shown on DELTATEST.
Note
Adjustment can only be effected if the daily rate
is lower than the possibilities offered by the
trimmer.
The guide-mark printed on the trimmer should
not be moved outside the limits indicated by fig.
2.2. The total correction area allows a rate
adjustment of 10 seconds.
If the daily rate is higher than the possible
correction limits, the electronic module should
be replaced (see folder 3-1310).
Fig. 2.2
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