A little knowledge is dangerous and / or worrying. Reading around here one picks up alarming snippets like Brooklyn, from whence I have just ordered a Blackbird Blacksteel is a hotbed of fake watches (- oops, I hope some are decent) and that watches are supposed to be serviced.
My 1996 Colt quartz has never been serviced.
Is this likely to be a problem in the longer term? it keeps on ticking just fine for now.