Pulsations Nina Question

I have seen all of the archives and also met with Mr Sala. I have also seen all of the source information on which the above logo and serial number information is based.

Since chronographs aren't really my thing, I will leave you to it.

facts ?

So let me get this right. here is the list of known pulsation bezels of both references 885103 and 885105 (thank you alfahands):

25xxxxx_20191218 885103/02 Pulsations
unknown_20150731 Unknown Pulsations
24xx334_20200501 885103/02 Pulsations
2569859 885103/02 Pulsations
2569872 885105/02 Pulsations
2569881 885105/02 Pulsations
25699[?]77_20141117 885105/03 Pulsations
2569xxx_20190417 885105/02 Pulsations
unknown_20170208 Unknown Pulsations
unknown_20180801 885105/02 Pulsations
unknown_20190215 885105/02 Pulsations
unknown_20190822 885105/02 Pulsations
unknown_20200224 Unknown Pulsations

You quote that 87.5% of 885105's are pulsation bezel while only There are 7 unknowns of which 5 (although unknown next to serial) are thought to be 8851105 and your conclusions that make it fact is based on that ?

That is hardly a meaningful statistic to go on considering the unknowns and the sample size ... however, just recalculating percentages as to properly portray stats ...

There are 13 pulsation ninas listed :

Out of the 13
- 3 are known 885103/02 which is 23% sample
- 7 are known 885105/02 which is 57% of sample (although 4 of the serials that cannot be confirmed)
- 3 are unknown reference which is 23% of sample

There are clearly too few samples to come to any firm fact !