First continuous amplitude, rate, and precision measurements.
Three different 3235 and 3285 calibers in DU position.
Data sampling rate:
every 30 s
Duration: 24 hours (2880 data points, each curve)
Amplitudes (after full winding):
3235 excellent
3285 not good
3285 not good
Rates, Timekeeping:
3235 very good
3285 acceptable
3285 not acceptable
Precision:
3235 excellent
3285 excellent
3285 very good
All three 32xx movements are within Rolex precision specs of -2/+2 sec/day
From full winding until 24 hours (test conditions)