Just looping back around as follow-up to the low amplitude issue on my SD43 / 3235.
After two COVID-19 months at Dallas, the watched was returned. In my conversations with Dallas Customer Service Rep, she indicated that they could not discern any issue with the watch.
With the watch shipped back, I put it on the timing machine and here are the results (full wind):
Face UP
Crown Left
Crown Down
Crown Right
Face Down
So it looks to me the technicians just adjusted up the balance wheel. In normal wearing, the watch consistently runs +2 to +3/day (Face Up overnight on the night stand).
I have not let the watch run 24 hours for an amplitude reading yet; I’ll report back if the results are materially different.
-Sheldon