My 2008 Sea dweller is messing up!!!

[rkboyer911]

I bought my SD new in Sep of 2008 and Have noticed lately that my date Is not acting right it will not change the date sometimes until 3-4 AM....and sometimes will not change at all even when I try to advance it manually seems to only do this 1 time a month but its never the same date Happened last month on the 5th and this month today on the 17th....Is it time for a full service?? WOW I was hoping that I could go the 7 years that people talk about on here.... I have got the watch to to the right date after bit of messing with it. UGH any thoughts?? My watch is not a safe queen but its not beat around by no means!! THANKS IN ADVANCE!!!!