Robychrono
6
Moon phase indicator
Recently I appreciated an article describing the high precision of the moon phase indicator of the new IWC perpetual calendar based on the new Pellaton movement. If I well remember the larger diameter of the case allows the positioning of bigger wheels and the result should be an error of 0.00014 hours.
It seems to me that in "normal" complete calendar (where, I suppose, the moon wheel presents 59 teeth) the error should be around one day after three years.
I would like to know what is the accuracy in the case of Patek perpetual calendar (3940 or 3970)and of ref. 5054 with power reserve, date and moon phase.
Thank you very much in advance
Kind regards
robychrono