Interesting info Don. Thanks. I assume you're a watchmaker? I'd have no scruple taking in watches more often if not for the cost of a COR. After researching on a couple watchmaker forums this past year, I found that many journeyman watchmakers claim that it takes them 1 hour total to COR a 17-jewel, unadjusted, mechanical pocket watch, and while parts bathe they work on other paying projects--makes sense. I started using my watchmaker in the San Francisco Bay Area because my stepfather has used him for decades and because he specializes in vintage watches. He charges around $200 for most cleanings if no parts need replacing, and I always assumed the high cost was due to the cost of rent/living in this area; however, out of curiosity and to save money, I've contacted watchmakers in Chico, CA, and in Florida--both areas having far lower costs of living--just to receive the same quote. To me $200 an hour labor/material rate with no new parts seems mighty steep to be the norm which keeps me away from the watchmakers as much as possible.