Not to start an argument but the Accutron movements were not recommended for regular service by Bulova itself. Directions that came with the Railroad models specifically stated that regular service was not necessary and the watch need only be serviced when it would no longer run (component failure) or would no longer keep accurate time when adjusted by normal regulation. In addition, these movements were not delicate. Many saw years of abuse and never stopped running.
We purchased our first two Accutrons in 1973 and 1974 - a Men's 2181 and a Ladies 230. Both ran whenever a fresh battery was installed up to the time they were sent for service last year. I will admit they should have been serviced a few years sooner because their accuracy was compromised. The men's 218 needed only cleaning, lubrication and regulation. In addition to cleaning and lube, the Ladies 230 did need an index finger and it now runs better than it did when new.
I purchased a NOS Accuquartz watch last year that is amazingly accurate. On the Watch Talk Fourn, another member and I had a friendle "Duel" with my 40 year old technology Accuquartz against his new technology Precisionist. After 5 monthe, when the battery in my watch died, the Accuquartz was approx 3.5 minutes off time. His Precisionist varied more than that. Bulova stated the Accuquartz to be accurate within 1-3 minutes/year and the Precisionist at 10 seconds/year.
The problem with Accutrons is that many of the watchmakers were not properly trained on them and would - still do today - mess them up because they didn't understand how to set them up after cleaning. I can't remember how many times it has been mentioned by posters on the Watch Talk Forum that their watches came back worse off after being serviced. I use a watchmaker in Bulgaria who has the parts and equipment to service all 6 major calibers of Accutron movements. He knows what he is doing and the accuracy of these old warriors is great after he finishes with them.