Ive read in many places about the more or less accuracy of the 51111 movement.
I have to say that IM TOTALY IMPRESSED.
My BP runs 2/3 seconds faster....PER WEEK!!!
This measurements are taking with watch fully wound and resting dial up until the watch is almost unwound.
My all time reference to check my watches is bimp.org
There is not a big change when wearing the watch on the wrist.
I have to say that is by far the most accurate watch I own, including other in house mov. like Panerai, and some others
Im really happy indded!