Tissot Dresswatch

Ulysse Nardin made the watch cognoscenti sit up and take notice back in 2001, when it unveiled its wildly unconventional Freak watch, one of the first timepieces to use silicon in key parts of its movement. The Freak Phantom, introduced at Baselworld 2013, continues that tradition of innovation and, well, freakishness. The original Ulysse Nardin Freak, which was the first timepiece to use silicon escapement wheels, also turned heads with its unprecedented design, with no traditional dial, crown ........

I have a 1960's era Seamaster. Runs perfectly, but probably not serviced in 30 years. Just got a quote from my local clock/watch store for $500 to have it serviced. Said it has rust in it, a part is broken, and it needs a new crystal. From what I've learned on this forum, I don't think the watch is even worth anything near $500. Question is: it really does runs great. Do I just keep wearing it until it falls apart or do I sell it (maybe for parts), buy something else with whatever proceeds I get........