LEGO Pendulum clock: can a LEGO clock run for a whole year?

This LEGO pendulum clock has been running for about a whole year almost continuously. However, in the last few months, it has stopped often enough that I think it's time to take it apart and see what is going wrong. I can see some signs of ground up plastic, I think some parts have worn down.
Update: After a while, I redesigned the escapement to be a grasshopper design, which should wear out less quickly: • LEGO Pendulum clock wi...
The instructions for building the new version of the clock, and some tips to get it running well, are here: dsharlet.com/20...