Issues after servicing warranty expired

[SupraFloater]

Hi all,

I had my submariner serviced in 2017. Last year the date would not "click" to stay centered in the cyclope, Rolex kindly fixed it at no charge. As of last week the watch would stop holding the charge after 4 hours of being put on the table.
Watch has 25 years.
Question: is it normal that these issues arise so shortly after servicing? I would have thought that Rolex's thorough checks during servicing would have done some sort of pre-emptive maintenance to avoid similar issues occurring.
Thanks